AGRADECIMENTO...

Pessoal, Gostaria de pedir desculpas aqueles que deixam perguntas/comentários/elogios/críticas e ainda não foram respondidos.

Aproveito a oportunidade para informar a todos que devido a correria do dia a dia não conclui o curso de BSI, por isso meus conhecimentos são limitados rsrsrs...

Ainda não retirei o blog do ar porque tem ajudado a diversos estudantes, principalmente os iniciantes.

As vezes, quando o trabalho me permite, ainda arrisco tentar resolver algumas questões rs... mas para não deixar esse blog parar no tempo, o ESTUDANTE que quiser enviar a resolução de alguma questão (código próprio) para o meu e-mail, terei o prazer de posta-la neste blog e será mantido a autoria.

Desde já agradeço a todos pelas visitas e desejo bons estudos.

Thiago Campos
(srthiago@hotmail.com)

domingo, 16 de abril de 2023

Tela de login em Java

 //Thiago Campos

//16.04.2023


//Em Java, faça um Código fonte de login que compare uma senha e imprima o resultado.

import java.util.Scanner; public class Login { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.print("Digite a senha: "); String senha = scanner.nextLine(); if(senha.equals("thiago")) { System.out.println("Senha correta. Acesso permitido."); } else { System.out.println("Senha incorreta. Acesso negado."); } scanner.close(); } }

segunda-feira, 29 de junho de 2015

Exemplo simples de Classe x Objeto, utilizando System.out.println() como saida.

/*Exemplo simples do uso de uma Classe X Objeto, cadastro de veículo.*/

//Autor: Thiago Campos
//Data: 29.06.2015

//CLASSE MAIN

public class MainEstudo {
    public static void main(String[] args){
        //Declaração da variavel
        Veiculo veic = new Veiculo();
       
        //Objeto
        veic.id = 01;
        veic.tipo = "carro";
        veic.cor = "Amarelo";
        veic.valor = 5000;
       
        veic.mostrarDetalhes();
    }  //fim do main

} //fim da classe


//CLASSE VEICULO

package EstudoCalsses01;

public class Veiculo {
    //Variaveis
    String tipo;
    String cor;
    int id;
    double valor;
   
    //Método mostrar objeto
    void mostrarDetalhes(){
      String mensagem = "Mostrar detalhes:";
      System.out.println(mensagem);
      System.out.println("Codigo do veiculo: " + id);
      System.out.println("Tipo do veiculo: " + tipo);
      System.out.println("Cor do veiculo: " + cor);
      System.out.println("Valor do veiculo: " + valor);
   } //fim do método
   
} //fim da classe




Para que serve o "break" - exemplo

/*Trabalhando com break – Usamos para parar a execução de um looping dada uma determinada condição. Para isso, utilizamos a palavra-chave "break". */

//Autor: Thiago Campos
//Data: 29.06.2015

package BlogThiagoCampos;

public class UsoBreak {
    public static void main (String[] args){

        for (int i=1; i<=10; i++){
            if(i==5){
                break; //para a execução de um looping dada uma determinada condição
            } //fim do if

            System.out.println(i); //impressão do looping

        } //fim do for

    } //fim do main
   

} //fim da class

Para que serve o "continue" - exemplo

/*Trabalhando com continue - podemos utilizar a palavra-chave "continue" para pular uma iteração de seu looping e forçar a execução do próximo laço. O código a seguir vai imprimir todos os números de 1 a 10, mas vai pular o número 5:
 */

//Autor: Thiago Campos
//Data: 29.06.2015


public class UsoContinue {
    public static void main (String[] args) {
       
        for (int i=1; i<=10; i++){
            if(i==5){
                continue; //faz pular a iteração de seu looping e forçar a execução do próximo laço
            } //fim do if
           
            System.out.println(i); //imprime o loop
           
        } //fim do for
       
    } //fim do main
   

} //fim da class

sábado, 8 de fevereiro de 2014

Cálculo do IMC - Código Java

Elabore um programa que calcule o índice de massa corporal (IMC) através do peso e da altura fornecida pelo usuário. Dependendo do valor obtido o programa deverá mostrar uma mensagem de alerta conforme tabela abaixo.




//Autor: Thiago Campos
//Data: 28.01.2014


/**
 *
 * @author Thiago
 */
public class jFVisor extends javax.swing.JFrame {
//declaração das variaveis
    float peso;
    float altura;
    float imc;

    /**
     * Creates new form jFVisor
     */
    public jFVisor() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                         
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jTAltura = new javax.swing.JTextField();
        jTPeso = new javax.swing.JTextField();
        jTImc = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jBCalcular = new javax.swing.JButton();
        jBLimpar = new javax.swing.JButton();
        jPanel2 = new javax.swing.JPanel();
        jLResultado = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "IMC", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Aharoni", 0, 18))); // NOI18N

        jLabel1.setText("Altura");

        jLabel2.setText("Peso");

        jLabel3.setText("IMC");

        jBCalcular.setText("Calcular");
        jBCalcular.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBCalcularActionPerformed(evt);
            }
        });

        jBLimpar.setText("Limpar");
        jBLimpar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBLimparActionPerformed(evt);
            }
        });

        jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder("Resultado"));

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jLResultado, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addComponent(jLResultado, javax.swing.GroupLayout.PREFERRED_SIZE, 48, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(0, 8, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addContainerGap())
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGap(0, 0, Short.MAX_VALUE)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jLabel1)
                                    .addComponent(jLabel2))
                                .addGap(52, 52, 52)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jTAltura)
                                    .addComponent(jTPeso)))
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(jBCalcular)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jBLimpar))))
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addComponent(jLabel3)
                        .addGap(18, 18, 18)
                        .addComponent(jTImc))))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTAltura, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTPeso, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jBCalcular)
                    .addComponent(jBLimpar))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTImc, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel3))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(35, 35, 35))
        );

        jLabel4.setText("Autor:Thiago Campos");

        jLabel5.setText("Data: 28/01/2014");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel4)
                    .addComponent(jLabel5))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jLabel5)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jLabel4)
                .addGap(11, 11, 11)
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 255, javax.swing.GroupLayout.PREFERRED_SIZE))
        );

        pack();
    }// </editor-fold>                        

    private void jBCalcularActionPerformed(java.awt.event.ActionEvent evt) {                                          
        // TODO add your handling code here:
        altura = Float.valueOf(jTAltura.getText()); //pega os valores dos campos
        peso = Float.valueOf(jTPeso.getText());
       
        imc = peso/(altura*altura); //calculo
       
        jTImc.setText(String.valueOf(imc)); //faz aparecer o resultado em imc
       
        jLResultado.setText(verificaImc(imc)); //setando o resultado no campo Resultado
    }                                         

    private void jBLimparActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:
        jTAltura.setText("");
        jTPeso.setText("");
        jTImc.setText("");
        jLResultado.setText("");
    }                                       

    public String verificaImc (float imc){
        String resultado = "";
        if(imc <= 18.5){
            resultado = "Você está abaixo do peso";
        }else if(imc > 18.5 && imc <= 24.9){
            resultado = "Peso Normal";
        }else if(imc > 25.0 && imc <= 29.9){
            resultado = "Sobrepeso";
        }else if(imc > 30.0 && imc <= 34.9){
            resultado = "Obsidade - Grau I";
        }else if(imc > 35.0 && imc <= 39.9){
            resultado = "Obsidade - Grau II";
        }else if(imc > 40.0){
            resultado = "Obsidade - Grau III";
        }
        return resultado;
    }
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(jFVisor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(jFVisor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(jFVisor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(jFVisor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /*Criando a forma do display */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new jFVisor().setVisible(true);
            }
        });
    }
    // Declaração das variaveis
    private javax.swing.JButton jBCalcular;
    private javax.swing.JButton jBLimpar;
    private javax.swing.JLabel jLResultado;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JTextField jTAltura;
    private javax.swing.JTextField jTImc;
    private javax.swing.JTextField jTPeso;
    // End of variables declaration                  

} //fim

Calculadora - código Java

Elaborar um programa java que simule uma calculadora, com as quatros operações: Adição, subtração, multiplicação e divisão. Ela deve também exibir em uma tela a última operação.


Código Java

//Autor: Thiago Campos
//Data: 15.01.2014

/**
 *
 * @author Thiago
 */

public class jFTela extends javax.swing.JFrame {
    double a; //guarda o valor do campo após inseri-lo no campo
    double valor; //guarda do campo após escolher a operação
    String op = ""; //guarda a operação escolhida
    int b = 0;

    /**
     * Creates new form jFTela
     */
    public jFTela() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jTCampo = new javax.swing.JTextField();
        jBUm = new javax.swing.JButton();
        jBDois = new javax.swing.JButton();
        jBTres = new javax.swing.JButton();
        jBQuatro = new javax.swing.JButton();
        jBSoma = new javax.swing.JButton();
        jBSubtrair = new javax.swing.JButton();
        jBMultiplicar = new javax.swing.JButton();
        jBDividir = new javax.swing.JButton();
        jBIgual = new javax.swing.JButton();
        jBLimpar = new javax.swing.JButton();
        jBCinco = new javax.swing.JButton();
        jBSeis = new javax.swing.JButton();
        jBSete = new javax.swing.JButton();
        jBOito = new javax.swing.JButton();
        jBNove = new javax.swing.JButton();
        jBZero = new javax.swing.JButton();
        jLTela = new javax.swing.JLabel();
        jLabel1 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jBUm.setText("1");
        jBUm.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBUmActionPerformed(evt);
            }
        });

        jBDois.setText("2");
        jBDois.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBDoisActionPerformed(evt);
            }
        });

        jBTres.setText("3");
        jBTres.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBTresActionPerformed(evt);
            }
        });

        jBQuatro.setText("4");
        jBQuatro.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBQuatroActionPerformed(evt);
            }
        });

        jBSoma.setText("+");
        jBSoma.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBSomaActionPerformed(evt);
            }
        });

        jBSubtrair.setText("-");
        jBSubtrair.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBSubtrairActionPerformed(evt);
            }
        });

        jBMultiplicar.setText("x");
        jBMultiplicar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBMultiplicarActionPerformed(evt);
            }
        });

        jBDividir.setText("/");
        jBDividir.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBDividirActionPerformed(evt);
            }
        });

        jBIgual.setText("=");
        jBIgual.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBIgualActionPerformed(evt);
            }
        });

        jBLimpar.setText("C");
        jBLimpar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBLimparActionPerformed(evt);
            }
        });

        jBCinco.setText("5");
        jBCinco.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBCincoActionPerformed(evt);
            }
        });

        jBSeis.setText("6");
        jBSeis.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBSeisActionPerformed(evt);
            }
        });

        jBSete.setText("7");
        jBSete.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBSeteActionPerformed(evt);
            }
        });

        jBOito.setText("8");
        jBOito.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBOitoActionPerformed(evt);
            }
        });

        jBNove.setText("9");
        jBNove.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBNoveActionPerformed(evt);
            }
        });

        jBZero.setText("0");
        jBZero.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBZeroActionPerformed(evt);
            }
        });

        jLabel1.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
        jLabel1.setText("        CALCULADORA");

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLTela, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jLabel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addGroup(jPanel1Layout.createSequentialGroup()
                                        .addComponent(jBUm)
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                        .addComponent(jBQuatro))
                                    .addGroup(jPanel1Layout.createSequentialGroup()
                                        .addComponent(jBDois)
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                        .addComponent(jBCinco))
                                    .addGroup(jPanel1Layout.createSequentialGroup()
                                        .addComponent(jBTres)
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                        .addComponent(jBSeis)))
                                .addGap(5, 6, Short.MAX_VALUE)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                        .addComponent(jBNove)
                                        .addComponent(jBSete))
                                    .addComponent(jBOito, javax.swing.GroupLayout.Alignment.TRAILING)))
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                                    .addComponent(jBMultiplicar, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jBSoma, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 56, Short.MAX_VALUE))
                                .addGap(18, 18, 18)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jBSubtrair, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                    .addComponent(jBDividir, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jBIgual)
                            .addComponent(jBLimpar)
                            .addComponent(jBZero)))
                    .addComponent(jTCampo))
                .addContainerGap())
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 31, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jTCampo, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jBUm)
                            .addComponent(jBQuatro)
                            .addComponent(jBSete))
                        .addGap(18, 18, 18)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jBDois)
                            .addComponent(jBCinco)
                            .addComponent(jBOito)))
                    .addComponent(jBIgual, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addGap(18, 18, 18)
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jBTres)
                    .addComponent(jBSeis)
                    .addComponent(jBNove)
                    .addComponent(jBZero))
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(jBSoma)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                                    .addComponent(jBMultiplicar)
                                    .addComponent(jBDividir)))
                            .addComponent(jBSubtrair)))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                        .addGap(8, 8, 8)
                        .addComponent(jBLimpar, javax.swing.GroupLayout.PREFERRED_SIZE, 55, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jLTela, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>

    private void jBUmActionPerformed(java.awt.event.ActionEvent evt) {                                    
        // TODO add your handling code here:
        if(b!=0){
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 1); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
       
    }                                   

    private void jBDoisActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 2); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                     

    private void jBTresActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 3); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                     

    private void jBQuatroActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 4); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                       

    private void jBSomaActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        valor = Double.valueOf(jTCampo.getText()); //vai guardar o valor digitado
        jTCampo.setText(""); // vai limpar o campo para receber novo valor
        op = "+"; //vai indicar a operação desejada
        jLTela.setText("Opção: Adição");
    }                                     

    private void jBIgualActionPerformed(java.awt.event.ActionEvent evt) {                                       
        // Processamento: vai verificar a opção escolhida
        b++;
        if (op.equalsIgnoreCase("+")){
            jTCampo.setText(String.valueOf(valor + a));
        } else if (op.equalsIgnoreCase("-")){
            jTCampo.setText(String.valueOf(valor - a));
        } else if (op.equalsIgnoreCase("x")){
            jTCampo.setText(String.valueOf(valor * a));
        } else if (op.equalsIgnoreCase("/")){
            jTCampo.setText(String.valueOf(valor / a));
        }
        valor = Double.valueOf(jTCampo.getText()); // guarda o valor para ser operacionado varias vezes ao clic consecultivamente do butão =
        jLTela.setText("Memoria: " + op + a);
    }                                      

    private void jBSubtrairActionPerformed(java.awt.event.ActionEvent evt) {                                          
        // TODO add your handling code here:
        valor = Double.valueOf(jTCampo.getText());
        jTCampo.setText(""); // vai limpar o campo para receber novo valor
        op = "-"; //vai indicar a operação desejada
        jLTela.setText("Opção: Subtração");
    }                                         

    private void jBMultiplicarActionPerformed(java.awt.event.ActionEvent evt) {                                             
        // TODO add your handling code here:
        valor = Double.valueOf(jTCampo.getText());
        jTCampo.setText(""); // vai limpar o campo para receber novo valor
        op = "x"; //vai indicar a operação desejada
        jLTela.setText("Opção: Multiplicação");
    }                                            

    private void jBLimparActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // Limpa todos as variaveis para a proxima operação:
        op = "";
        valor = 0.0;
        a = 0.0;
        jTCampo.setText("");
        jLTela.setText("Pronta para ser utilizada");
    }                                       

    private void jBDividirActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:
        valor = Double.valueOf(jTCampo.getText());
        jTCampo.setText(""); // vai limpar o campo para receber novo valor
        op = "/"; //vai indicar a operação desejada
       
    }                                        

    private void jBCincoActionPerformed(java.awt.event.ActionEvent evt) {                                       
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 5); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                      

    private void jBSeisActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 6); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                     

    private void jBSeteActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 7); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                     

    private void jBOitoActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 8); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                     

    private void jBNoveActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 9); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                     

    private void jBZeroActionPerformed(java.awt.event.ActionEvent evt) {                                      
        // TODO add your handling code here:
        if(b!=0){ //vai garantir que caso tenha clicado em = zere o campo se digitar este numero
            jTCampo.setText("");
        }
        jTCampo.setText(jTCampo.getText() + 0); //Acrescenta o valor no campo
        a = Double.valueOf(jTCampo.getText()); //guarda o valor digitado no campo
    }                                     

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(jFTela.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(jFTela.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(jFTela.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(jFTela.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new jFTela().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify
    private javax.swing.JButton jBCinco;
    private javax.swing.JButton jBDividir;
    private javax.swing.JButton jBDois;
    private javax.swing.JButton jBIgual;
    private javax.swing.JButton jBLimpar;
    private javax.swing.JButton jBMultiplicar;
    private javax.swing.JButton jBNove;
    private javax.swing.JButton jBOito;
    private javax.swing.JButton jBQuatro;
    private javax.swing.JButton jBSeis;
    private javax.swing.JButton jBSete;
    private javax.swing.JButton jBSoma;
    private javax.swing.JButton jBSubtrair;
    private javax.swing.JButton jBTres;
    private javax.swing.JButton jBUm;
    private javax.swing.JButton jBZero;
    private javax.swing.JLabel jLTela;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JTextField jTCampo;
    // End of variables declaration
} //fim