Sistema de venda

Programação Java
, , ,
#1

Estou criando uma tela de vendas(imagem da tela de vendas a baixo), e gostaria de saber como posso fazer a busca dos produtos no banco e confirma a compra.
Quem poder me ajuda eu agradeço desde já.

Sem%20t%C3%ADtulo
Sem título.png1366×768 17.1 KB

#2

como assim man… ao preencher o campo de CODIGO é so mandar fazer a busca na base, e retorna com a descrição do produto, valor, etc.

1 curtida
#3

Código!

#4

Você vai precisar fazer uma query. É só isso.

2 curtidas
#5

package view;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import javax.swing.JFrame;
import javax.swing.Timer;

public class TelaVendas extends javax.swing.JFrame {

/**
 * Creates new form VENDA
 */
public TelaVendas() {
    initComponents();
    setExtendedState(JFrame.MAXIMIZED_BOTH);
}

/**
 * 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();
    jPanel2 = new javax.swing.JPanel();
    jLNomeProduto = new javax.swing.JLabel();
    jLabel2 = new javax.swing.JLabel();
    jPanel3 = new javax.swing.JPanel();
    jLQuantidade = new javax.swing.JLabel();
    jLabel3 = new javax.swing.JLabel();
    jPanel4 = new javax.swing.JPanel();
    jLValor = new javax.swing.JLabel();
    jLabel4 = new javax.swing.JLabel();
    jPanel5 = new javax.swing.JPanel();
    jLtroco = new javax.swing.JLabel();
    jPanel6 = new javax.swing.JPanel();
    jTDinheiroEntrada = new javax.swing.JTextField();
    jLabel5 = new javax.swing.JLabel();
    jPanel7 = new javax.swing.JPanel();
    jLabel8 = new javax.swing.JLabel();
    jLabel9 = new javax.swing.JLabel();
    jPanel9 = new javax.swing.JPanel();
    jTNomeCliente = new javax.swing.JTextField();
    jPanel10 = new javax.swing.JPanel();
    jFCpfCliente = new javax.swing.JFormattedTextField();
    jPanel11 = new javax.swing.JPanel();
    jLFinalizarCompra = new javax.swing.JLabel();
    jLabel6 = new javax.swing.JLabel();
    jLData = new javax.swing.JLabel();
    jLHora = new javax.swing.JLabel();
    jLabel7 = new javax.swing.JLabel();
    jPanel8 = new javax.swing.JPanel();
    jTCodigo = new javax.swing.JTextField();
    jButton2 = new javax.swing.JButton();
    jScrollPane1 = new javax.swing.JScrollPane();
    jTProdutoComprados = new javax.swing.JTable();
    jPanel12 = new javax.swing.JPanel();
    jLConfirma = new javax.swing.JLabel();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
    setUndecorated(true);
    setResizable(false);
    addWindowListener(new java.awt.event.WindowAdapter() {
        public void windowOpened(java.awt.event.WindowEvent evt) {
            formWindowOpened(evt);
        }
    });

    jPanel1.setBackground(new java.awt.Color(255, 255, 255));
    jPanel1.setPreferredSize(new java.awt.Dimension(1366, 768));

    jPanel2.setBackground(new java.awt.Color(0, 100, 240));

    jLNomeProduto.setFont(new java.awt.Font("Bebas Neue", 1, 36)); // NOI18N
    jLNomeProduto.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLNomeProduto.setText("Produtos que ira aparecer quando digitar o codigo");

    javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
    jPanel2.setLayout(jPanel2Layout);
    jPanel2Layout.setHorizontalGroup(
        jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLNomeProduto, javax.swing.GroupLayout.DEFAULT_SIZE, 1300, Short.MAX_VALUE)
            .addContainerGap())
    );
    jPanel2Layout.setVerticalGroup(
        jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel2Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLNomeProduto, javax.swing.GroupLayout.DEFAULT_SIZE, 78, Short.MAX_VALUE)
            .addContainerGap())
    );

    jLabel2.setFont(new java.awt.Font("Bebas Neue", 0, 24)); // NOI18N
    jLabel2.setText("Valor");

    jPanel3.setBackground(new java.awt.Color(0, 100, 240));

    jLQuantidade.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jLQuantidade.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLQuantidade.setText("jLabel8");
    jLQuantidade.addAncestorListener(new javax.swing.event.AncestorListener() {
        public void ancestorMoved(javax.swing.event.AncestorEvent evt) {
        }
        public void ancestorAdded(javax.swing.event.AncestorEvent evt) {
            jLQuantidadeAncestorAdded(evt);
        }
        public void ancestorRemoved(javax.swing.event.AncestorEvent evt) {
        }
    });

    javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
    jPanel3.setLayout(jPanel3Layout);
    jPanel3Layout.setHorizontalGroup(
        jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel3Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLQuantidade, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addContainerGap())
    );
    jPanel3Layout.setVerticalGroup(
        jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel3Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLQuantidade, javax.swing.GroupLayout.DEFAULT_SIZE, 43, Short.MAX_VALUE)
            .addContainerGap())
    );

    jLabel3.setFont(new java.awt.Font("Bebas Neue", 0, 24)); // NOI18N
    jLabel3.setText("Quantidade");

    jPanel4.setBackground(new java.awt.Color(0, 100, 240));

    jLValor.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jLValor.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLValor.setText("jLabel8");
    jLValor.addAncestorListener(new javax.swing.event.AncestorListener() {
        public void ancestorMoved(javax.swing.event.AncestorEvent evt) {
        }
        public void ancestorAdded(javax.swing.event.AncestorEvent evt) {
            jLValorAncestorAdded(evt);
        }
        public void ancestorRemoved(javax.swing.event.AncestorEvent evt) {
        }
    });

    javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
    jPanel4.setLayout(jPanel4Layout);
    jPanel4Layout.setHorizontalGroup(
        jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel4Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLValor, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addContainerGap())
    );
    jPanel4Layout.setVerticalGroup(
        jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel4Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLValor, javax.swing.GroupLayout.DEFAULT_SIZE, 43, Short.MAX_VALUE)
            .addContainerGap())
    );

    jLabel4.setFont(new java.awt.Font("Bebas Neue", 0, 24)); // NOI18N
    jLabel4.setText("troco");

    jPanel5.setBackground(new java.awt.Color(0, 100, 240));

    jLtroco.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jLtroco.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLtroco.setText("jLabel9");

    javax.swing.GroupLayout jPanel5Layout = new javax.swing.GroupLayout(jPanel5);
    jPanel5.setLayout(jPanel5Layout);
    jPanel5Layout.setHorizontalGroup(
        jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel5Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLtroco, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addContainerGap())
    );
    jPanel5Layout.setVerticalGroup(
        jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel5Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLtroco, javax.swing.GroupLayout.DEFAULT_SIZE, 43, Short.MAX_VALUE)
            .addContainerGap())
    );

    jPanel6.setBackground(new java.awt.Color(0, 100, 240));

    jTDinheiroEntrada.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jTDinheiroEntrada.setHorizontalAlignment(javax.swing.JTextField.CENTER);
    jTDinheiroEntrada.setBorder(null);
    jTDinheiroEntrada.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jTDinheiroEntradaActionPerformed(evt);
        }
    });

    javax.swing.GroupLayout jPanel6Layout = new javax.swing.GroupLayout(jPanel6);
    jPanel6.setLayout(jPanel6Layout);
    jPanel6Layout.setHorizontalGroup(
        jPanel6Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel6Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jTDinheiroEntrada, javax.swing.GroupLayout.DEFAULT_SIZE, 403, Short.MAX_VALUE)
            .addContainerGap())
    );
    jPanel6Layout.setVerticalGroup(
        jPanel6Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel6Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jTDinheiroEntrada, javax.swing.GroupLayout.DEFAULT_SIZE, 43, Short.MAX_VALUE)
            .addContainerGap())
    );

    jLabel5.setFont(new java.awt.Font("Bebas Neue", 0, 24)); // NOI18N
    jLabel5.setText("dinheiro entrada");

    jLabel8.setFont(new java.awt.Font("Bebas Neue", 0, 24)); // NOI18N
    jLabel8.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLabel8.setText("Nome Cliente:");
    jLabel8.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);

    jLabel9.setFont(new java.awt.Font("Bebas Neue", 0, 24)); // NOI18N
    jLabel9.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLabel9.setText("Cpf Cliente:");
    jLabel9.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
    jLabel9.setMaximumSize(new java.awt.Dimension(123, 30));
    jLabel9.setMinimumSize(new java.awt.Dimension(123, 30));
    jLabel9.setPreferredSize(new java.awt.Dimension(123, 30));

    jPanel9.setBackground(new java.awt.Color(0, 100, 240));
    jPanel9.setPreferredSize(new java.awt.Dimension(302, 42));

    jTNomeCliente.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N

    javax.swing.GroupLayout jPanel9Layout = new javax.swing.GroupLayout(jPanel9);
    jPanel9.setLayout(jPanel9Layout);
    jPanel9Layout.setHorizontalGroup(
        jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel9Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jTNomeCliente)
            .addContainerGap())
    );
    jPanel9Layout.setVerticalGroup(
        jPanel9Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel9Layout.createSequentialGroup()
            .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addComponent(jTNomeCliente)
            .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    );

    jPanel10.setBackground(new java.awt.Color(0, 100, 240));

    try {
        jFCpfCliente.setFormatterFactory(new javax.swing.text.DefaultFormatterFactory(new javax.swing.text.MaskFormatter("###.###.###-##")));
    } catch (java.text.ParseException ex) {
        ex.printStackTrace();
    }
    jFCpfCliente.setHorizontalAlignment(javax.swing.JTextField.CENTER);

    javax.swing.GroupLayout jPanel10Layout = new javax.swing.GroupLayout(jPanel10);
    jPanel10.setLayout(jPanel10Layout);
    jPanel10Layout.setHorizontalGroup(
        jPanel10Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel10Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jFCpfCliente, javax.swing.GroupLayout.DEFAULT_SIZE, 282, Short.MAX_VALUE)
            .addContainerGap())
    );
    jPanel10Layout.setVerticalGroup(
        jPanel10Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel10Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jFCpfCliente)
            .addContainerGap())
    );

    jPanel11.setBackground(new java.awt.Color(0, 100, 240));

    jLFinalizarCompra.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jLFinalizarCompra.setForeground(new java.awt.Color(255, 255, 255));
    jLFinalizarCompra.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLFinalizarCompra.setText("Finalizar comprar");

    javax.swing.GroupLayout jPanel11Layout = new javax.swing.GroupLayout(jPanel11);
    jPanel11.setLayout(jPanel11Layout);
    jPanel11Layout.setHorizontalGroup(
        jPanel11Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jLFinalizarCompra, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 273, Short.MAX_VALUE)
    );
    jPanel11Layout.setVerticalGroup(
        jPanel11Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jLFinalizarCompra, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 83, Short.MAX_VALUE)
    );

    javax.swing.GroupLayout jPanel7Layout = new javax.swing.GroupLayout(jPanel7);
    jPanel7.setLayout(jPanel7Layout);
    jPanel7Layout.setHorizontalGroup(
        jPanel7Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel7Layout.createSequentialGroup()
            .addGap(31, 31, 31)
            .addGroup(jPanel7Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                .addComponent(jLabel9, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jLabel8, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
            .addGroup(jPanel7Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                .addComponent(jPanel9, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jPanel10, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addComponent(jPanel11, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(36, 36, 36))
    );
    jPanel7Layout.setVerticalGroup(
        jPanel7Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel7Layout.createSequentialGroup()
            .addGroup(jPanel7Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(jPanel7Layout.createSequentialGroup()
                    .addContainerGap()
                    .addGroup(jPanel7Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(jPanel9, javax.swing.GroupLayout.DEFAULT_SIZE, 51, Short.MAX_VALUE)
                        .addComponent(jLabel8, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addGroup(jPanel7Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                        .addComponent(jPanel10, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addComponent(jLabel9, javax.swing.GroupLayout.PREFERRED_SIZE, 51, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGroup(jPanel7Layout.createSequentialGroup()
                    .addGap(22, 22, 22)
                    .addComponent(jPanel11, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(0, 0, Short.MAX_VALUE)))
            .addContainerGap())
    );

    jLabel6.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jLabel6.setText("Mercadinho Do Gelado");

    jLData.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jLData.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);

    jLHora.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jLHora.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);

    jLabel7.setFont(new java.awt.Font("Bebas Neue", 0, 24)); // NOI18N
    jLabel7.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLabel7.setText("código");

    jPanel8.setBackground(new java.awt.Color(0, 100, 240));

    jTCodigo.setFont(new java.awt.Font("Bebas Neue", 0, 18)); // NOI18N
    jTCodigo.setHorizontalAlignment(javax.swing.JTextField.CENTER);
    jTCodigo.setBorder(null);

    javax.swing.GroupLayout jPanel8Layout = new javax.swing.GroupLayout(jPanel8);
    jPanel8.setLayout(jPanel8Layout);
    jPanel8Layout.setHorizontalGroup(
        jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel8Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jTCodigo, javax.swing.GroupLayout.DEFAULT_SIZE, 311, Short.MAX_VALUE)
            .addContainerGap())
    );
    jPanel8Layout.setVerticalGroup(
        jPanel8Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel8Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jTCodigo, javax.swing.GroupLayout.DEFAULT_SIZE, 39, Short.MAX_VALUE)
            .addContainerGap())
    );

    jButton2.setBackground(new java.awt.Color(0, 100, 240));
    jButton2.setFont(new java.awt.Font("Arial", 1, 10)); // NOI18N
    jButton2.setText("X");
    jButton2.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton2ActionPerformed(evt);
        }
    });

    jTProdutoComprados.setModel(new javax.swing.table.DefaultTableModel(
        new Object [][] {
            {},
            {},
            {},
            {}
        },
        new String [] {

        }
    ));
    jScrollPane1.setViewportView(jTProdutoComprados);

    jPanel12.setBackground(new java.awt.Color(0, 100, 240));

    jLConfirma.setFont(new java.awt.Font("Bebas Neue", 0, 36)); // NOI18N
    jLConfirma.setForeground(new java.awt.Color(255, 255, 255));
    jLConfirma.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
    jLConfirma.setText("OK");
    jLConfirma.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
    jLConfirma.addMouseListener(new java.awt.event.MouseAdapter() {
        public void mouseClicked(java.awt.event.MouseEvent evt) {
            jLConfirmaMouseClicked(evt);
        }
    });

    javax.swing.GroupLayout jPanel12Layout = new javax.swing.GroupLayout(jPanel12);
    jPanel12.setLayout(jPanel12Layout);
    jPanel12Layout.setHorizontalGroup(
        jPanel12Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jLConfirma, javax.swing.GroupLayout.DEFAULT_SIZE, 73, Short.MAX_VALUE)
    );
    jPanel12Layout.setVerticalGroup(
        jPanel12Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jLConfirma, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, 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(29, Short.MAX_VALUE)
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                .addGroup(jPanel1Layout.createSequentialGroup()
                    .addComponent(jLabel6)
                    .addGap(18, 18, 18)
                    .addComponent(jLData, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                    .addComponent(jLHora, javax.swing.GroupLayout.PREFERRED_SIZE, 87, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGap(966, 966, 966)
                    .addComponent(jButton2))
                .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(jPanel1Layout.createSequentialGroup()
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(jLabel7, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(jPanel8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 749, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(65, 65, 65)
                        .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jPanel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jPanel4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jPanel3, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jLabel5)
                            .addComponent(jLabel4)
                            .addComponent(jLabel2)
                            .addComponent(jLabel3)
                            .addGroup(jPanel1Layout.createSequentialGroup()
                                .addComponent(jPanel6, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                .addComponent(jPanel12, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))))))
            .addContainerGap(37, Short.MAX_VALUE))
        .addComponent(jPanel7, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
    );
    jPanel1Layout.setVerticalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel1Layout.createSequentialGroup()
            .addContainerGap()
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                .addComponent(jLData, javax.swing.GroupLayout.DEFAULT_SIZE, 24, Short.MAX_VALUE)
                .addComponent(jLHora, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jLabel6, javax.swing.GroupLayout.Alignment.TRAILING)
                .addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
            .addGap(18, 18, 18)
            .addComponent(jPanel2, 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)
                .addGroup(jPanel1Layout.createSequentialGroup()
                    .addComponent(jLabel3)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(jLabel2)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(jPanel4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(jLabel4)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                    .addComponent(jLabel5)
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                        .addComponent(jPanel6, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addComponent(jPanel12, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                .addGroup(jPanel1Layout.createSequentialGroup()
                    .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(jPanel8, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addComponent(jLabel7, javax.swing.GroupLayout.PREFERRED_SIZE, 61, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                    .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 374, javax.swing.GroupLayout.PREFERRED_SIZE)))
            .addGap(25, 25, 25)
            .addComponent(jPanel7, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    );

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, 1386, Short.MAX_VALUE)
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(0, 0, Short.MAX_VALUE))
    );

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

private void formWindowOpened(java.awt.event.WindowEvent evt) {                                  
    // TODO add your handling code here:
    //Data
    Date DataSistema = new Date();
    SimpleDateFormat formato = new SimpleDateFormat("dd/MM/yyyy");
    jLHora.setText(formato.format(DataSistema));

    //Horas
    Timer timer = new Timer(1000, new hora());
    timer.start();
}                                 

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
    // TODO add your handling code here:
    TelaPrincipal tPrincipal = new TelaPrincipal();
    tPrincipal.setVisible(true);
    this.dispose();
}                                        

private void jLValorAncestorAdded(javax.swing.event.AncestorEvent evt) {                                      
    // TODO add your handling code here:
    double valor = 56.65;
    jLValor.setText("R$ " + valor);
}                                     

private void jTDinheiroEntradaActionPerformed(java.awt.event.ActionEvent evt) {                                                  
    // TODO add your handling code here:

}                                                 

private void jLQuantidadeAncestorAdded(javax.swing.event.AncestorEvent evt) {                                           
    // TODO add your handling code here:
    int quantidade = 5;
    jLQuantidade.setText("X " + quantidade);
    
}                                          

private void jLConfirmaMouseClicked(java.awt.event.MouseEvent evt) {                                        
    // TODO add your handling code here:
   
    
}
#6

continuação…

/**
 * @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(TelaVendas.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(TelaVendas.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(TelaVendas.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(TelaVendas.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>
    //</editor-fold>

    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new TelaVendas().setVisible(true);
        }
    });
}

// Variables declaration - do not modify                     
private javax.swing.JButton jButton2;
private javax.swing.JFormattedTextField jFCpfCliente;
private javax.swing.JLabel jLConfirma;
private javax.swing.JLabel jLData;
private javax.swing.JLabel jLFinalizarCompra;
private javax.swing.JLabel jLHora;
private javax.swing.JLabel jLNomeProduto;
private javax.swing.JLabel jLQuantidade;
private javax.swing.JLabel jLValor;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JLabel jLabel7;
private javax.swing.JLabel jLabel8;
private javax.swing.JLabel jLabel9;
private javax.swing.JLabel jLtroco;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel10;
private javax.swing.JPanel jPanel11;
private javax.swing.JPanel jPanel12;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel4;
private javax.swing.JPanel jPanel5;
private javax.swing.JPanel jPanel6;
private javax.swing.JPanel jPanel7;
private javax.swing.JPanel jPanel8;
private javax.swing.JPanel jPanel9;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextField jTCodigo;
private javax.swing.JTextField jTDinheiroEntrada;
private javax.swing.JTextField jTNomeCliente;
private javax.swing.JTable jTProdutoComprados;
// End of variables declaration                   

class hora implements ActionListener {

    @Override
    public void actionPerformed(ActionEvent e) {
        Calendar now = Calendar.getInstance();
        jLData.setText(String.format("%1$tH:%1$tM:%1$tS", now));
    }
}

}
#7

Dar uma estudada em SQL.

1 curtida