netbeans Java GUI窗口将在启动时冻结

lhcgjxsq  于 12个月前  发布在  Java
关注(0)|答案(1)|浏览(206)

这是一个洗车的gui程序。由两个类demo和total组成，在计算后会在一个新窗口中显示total。一切都很好，决定再运行一次截图，但它卡住了，就像程序正在运行，但窗口冻结。我使用的是net bean拖放方法。enter image description here demo类

package car.wash_05;

public class demo extends javax.swing.JFrame {
    private double small_Engine = 100.0;
    private double big_engine = 200.0;
    private double battery = 100.0;
    private double oi_filter = 70.0;
    private double brakes = 100.0;
    private double gears = 100.0;
    private double regular_wash = 50.0;
    private double wash_Compound = 100.0;

    // Declare variables to store the selected services
    private boolean smallEngineSelected = false;
    private boolean bigEngineSelected = false;
    private boolean batterySelected = false;
    private boolean oilAndFilterSelected = false;
    private boolean brakesSelected = false;
    private boolean gearsSelected = false;
    private boolean regularWashSelected = false;
    private boolean washAndCompoundSelected = false;

    // Declare a variable to store the subtotal price
    private double subtotal = 0.0;
    
    public demo() {
        System.out.println("Before GUI initialization");
initComponents();
System.out.println("After GUI initialization");
    }
    
     private void updateSubtotal() {
        subtotal = 0.0;

        if (smallEngineSelected) 
            subtotal += small_Engine;

        if (bigEngineSelected)
            subtotal += big_engine;

        if (batterySelected) 
            subtotal += battery;

        if (oilAndFilterSelected)
            subtotal += oi_filter;

        if (brakesSelected) 
            subtotal += brakes;

        if (gearsSelected) 
            subtotal += gears;
     }
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jRadioButton2 = new javax.swing.JRadioButton();
        jLabel1 = new javax.swing.JLabel();
        jPanel1 = new javax.swing.JPanel();
        jRadioButton1 = new javax.swing.JRadioButton();
        jRadioButton3 = new javax.swing.JRadioButton();
        jPanel2 = new javax.swing.JPanel();
        jRadioButton4 = new javax.swing.JRadioButton();
        jRadioButton5 = new javax.swing.JRadioButton();
        jRadioButton6 = new javax.swing.JRadioButton();
        jPanel3 = new javax.swing.JPanel();
        jCheckBox1 = new javax.swing.JCheckBox();
        jCheckBox2 = new javax.swing.JCheckBox();
        jCheckBox3 = new javax.swing.JCheckBox();
        jCheckBox4 = new javax.swing.JCheckBox();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        jRadioButton2.setText("jRadioButton2");

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Auto Tech and Mech Services");
        setEnabled(false);

        jLabel1.setText("Welcome to Auto Tech and Mech Services");

        jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        jPanel1.setToolTipText("");

        jRadioButton1.setText("Small");
        jRadioButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jRadioButton1ActionPerformed(evt);
            }
        });

        jRadioButton3.setText("Big");
        jRadioButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jRadioButton3ActionPerformed(evt);
            }
        });

        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(jRadioButton1)
                    .addComponent(jRadioButton3))
                .addContainerGap(10, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(39, 39, 39)
                .addComponent(jRadioButton1)
                .addGap(29, 29, 29)
                .addComponent(jRadioButton3)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jPanel2.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        jPanel2.setName(""); // NOI18N

        jRadioButton4.setText("None");
        jRadioButton4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jRadioButton4ActionPerformed(evt);
            }
        });

        jRadioButton5.setText("Regular Wash");
        jRadioButton5.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jRadioButton5ActionPerformed(evt);
            }
        });

        jRadioButton6.setText("Wash & Compound");
        jRadioButton6.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jRadioButton6ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jRadioButton4)
                    .addComponent(jRadioButton5)
                    .addComponent(jRadioButton6))
                .addGap(0, 0, Short.MAX_VALUE))
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addGap(28, 28, 28)
                .addComponent(jRadioButton4)
                .addGap(28, 28, 28)
                .addComponent(jRadioButton5)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addComponent(jRadioButton6)
                .addGap(14, 14, 14))
        );

        jPanel3.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        jPanel3.setToolTipText("");
        jPanel3.setName(""); // NOI18N

        jCheckBox1.setText("Battery");
        jCheckBox1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jCheckBox1ActionPerformed(evt);
            }
        });

        jCheckBox2.setText("Oil Filters");
        jCheckBox2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jCheckBox2ActionPerformed(evt);
            }
        });

        jCheckBox3.setText("Brakes");
        jCheckBox3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jCheckBox3ActionPerformed(evt);
            }
        });

        jCheckBox4.setText("Gear");
        jCheckBox4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jCheckBox4ActionPerformed(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()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jCheckBox1)
                    .addComponent(jCheckBox2)
                    .addComponent(jCheckBox3)
                    .addComponent(jCheckBox4))
                .addContainerGap(105, Short.MAX_VALUE))
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addGap(19, 19, 19)
                .addComponent(jCheckBox1)
                .addGap(18, 18, 18)
                .addComponent(jCheckBox2)
                .addGap(18, 18, 18)
                .addComponent(jCheckBox3)
                .addGap(18, 18, 18)
                .addComponent(jCheckBox4)
                .addContainerGap(8, Short.MAX_VALUE))
        );

        jButton1.setText("Calculate");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("Exit");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        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)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel1)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(jButton1)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                .addComponent(jButton2))
                            .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jPanel2, 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()
                .addGap(12, 12, 12)
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                    .addComponent(jPanel3, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jPanel1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jButton2))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jPanel1.getAccessibleContext().setAccessibleName("");
        jPanel2.getAccessibleContext().setAccessibleName("");

        pack();
    }// </editor-fold>                        
    //Small engine ratio button
    private void jRadioButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                              

                smallEngineSelected = true;
                bigEngineSelected = false;
                jRadioButton3.setSelected(false);
                updateSubtotal();
    }                                             
    
    //big engine ratio button
    private void jRadioButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                              
        bigEngineSelected = true;
        smallEngineSelected = false;
        jRadioButton1.setSelected(false);
        updateSubtotal();
    }                                             

    //Oil filter check button
    private void jCheckBox2ActionPerformed(java.awt.event.ActionEvent evt) {                                           
       oilAndFilterSelected = jCheckBox2.isSelected();
                updateSubtotal();
    }                                          

    //none ration button
    private void jRadioButton4ActionPerformed(java.awt.event.ActionEvent evt) {                                              
washAndCompoundSelected = false;
         regularWashSelected = false ; 
         jRadioButton5.setSelected(false);
         jRadioButton6.setSelected(false);
    }                                             
    
    //battery check button
    private void jCheckBox1ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        batterySelected = jCheckBox1.isSelected();
                updateSubtotal();
    }                                          

    //Brakes check button
    private void jCheckBox3ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        brakesSelected = jCheckBox3.isSelected();
                updateSubtotal();
    }                                          
    
    //gear check button
    private void jCheckBox4ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        gearsSelected = jCheckBox4.isSelected();
                updateSubtotal();
    }                                          

    //rugular was ration button
    private void jRadioButton5ActionPerformed(java.awt.event.ActionEvent evt) {                                              
        regularWashSelected = true;
        washAndCompoundSelected =false;
        jRadioButton6.setSelected(false);
                updateSubtotal();
    }                                             

    //Wash and compound ration button
    private void jRadioButton6ActionPerformed(java.awt.event.ActionEvent evt) {                                              
         washAndCompoundSelected = true;
         regularWashSelected = false;
         jRadioButton5.setSelected(false);
                updateSubtotal();
    }                                             
    
    //calculate button
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        double total = subtotal + (subtotal * 0.1);
        double tax=subtotal * 0.1;
        Total totalFrame = new Total(total, subtotal, tax);
        totalFrame.setVisible(true);
        
    }                                        

    //exit button
    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        System.exit(0);
    }                                        

    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new demo().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JCheckBox jCheckBox1;
    private javax.swing.JCheckBox jCheckBox2;
    private javax.swing.JCheckBox jCheckBox3;
    private javax.swing.JCheckBox jCheckBox4;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JRadioButton jRadioButton1;
    private javax.swing.JRadioButton jRadioButton2;
    private javax.swing.JRadioButton jRadioButton3;
    private javax.swing.JRadioButton jRadioButton4;
    private javax.swing.JRadioButton jRadioButton5;
    private javax.swing.JRadioButton jRadioButton6;
    // End of variables declaration                   
}

字符串
总上课

package car.wash_05;
public class Total extends javax.swing.JFrame {

    public Total() {
        
    }

    public Total(double tota, double subtota, double ta) {
        initComponents();
        jLabel1.setText("Subtotal: $" + subtota);
        jLabel2.setText("tax: $" + ta);
        jLabel3.setText("Total: $" + tota);
        
    }

    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jButton1 = new javax.swing.JButton();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Total");

        jButton1.setText("Ok");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jLabel1.setText("jLabel1");

        jLabel2.setText("jLabel2");

        jLabel3.setText("jLabel3");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(32, 32, 32)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(jLabel2)
                            .addComponent(jLabel1)
                            .addComponent(jLabel3)))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(101, 101, 101)
                        .addComponent(jButton1)))
                .addContainerGap(105, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(20, Short.MAX_VALUE)
                .addComponent(jLabel1)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jLabel2)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jLabel3)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jButton1)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>                        
//ok button
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
         this.dispose();
    }                                        

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Total().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    // End of variables declaration                   
}

型
我trid添加检查，重新启动系统和重新安装java。它不会work.it只是冻结，甚至关闭和其他按钮将工作，必须强制选择它从任务管理器。

netbeans

1条答案

按热度按时间
r7knjye2

r7knjye21#

你做错了什么
在initComponents方法的第75行，您正在使用setEnabled(false)这将禁用窗口及其所有子窗口（框架上的所有组件），因此感觉窗口被冻结。
要解决此问题，只需从以下代码中删除setEnabled(false)行

/* Rest of your code */

jRadioButton2.setText("jRadioButton2");

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Auto Tech and Mech Services");
setEnabled(false); //Line causing this issue

jLabel1.setText("Welcome to Auto Tech and Mech Services");

/* Rest of your code */

字符串

还有一些重要的事情要记住

·记住naming conventions！避免将类命名为demo.java，而是使用Demo.java。
·其次，你不需要一个单独的方法来处理所执行的动作，只需将其直接移动到button.addActionListener的动作监听器中即可。
·第三（这是个人喜好），你不需要使用-

java.awt.EventQueue.invokeLater(new Runnable() {
    public void run() {
         new Demo().setVisible(true);
    }
});

型
您可以使用x1das来缩短此代码（了解有关here的更多信息），并使代码仅为一行，如下所示。

java.awt.EventQueue.invokeLater(() -> new Demo().setVisible(true));

型

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