Java swing应用程序不启动

-2

我想编写一个计算器来查看平均成绩，但它不会启动。它是用java swing写的，你可以看到，帮助将不胜感激。Java swing应用程序不启动

主类：

package me.imfrozen; 

public class TheMainClass { 

    public static void main(String[] args) { 
    new FrameA(); 

    } 

}

FrameA：

package me.imfrozen; 

import java.awt.Font; 
import java.awt.Toolkit; 

import javax.swing.GroupLayout; 
import javax.swing.GroupLayout.Alignment; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JSpinner; 
import javax.swing.LayoutStyle.ComponentPlacement; 
import javax.swing.SpinnerNumberModel; 
import java.awt.event.KeyAdapter; 
import java.awt.event.KeyEvent; 

@SuppressWarnings("serial") 
public class FrameA extends JFrame { 
    static JSpinner sa6; 
    static JSpinner sa7; 
    static JSpinner sa8; 
    static JSpinner sa1; 
    static JSpinner sa2; 
    static JSpinner sa3; 
    static JSpinner sa4; 
    static JSpinner sa5; 

    static JSpinner ex2; 
    static JSpinner ex3; 
    static JSpinner ex7; 
    static JSpinner ex8; 
    static JSpinner ex5; 
    static JSpinner ex4; 
    static JSpinner ex6; 
    static JSpinner ex1; 

    static JSpinner af2; 
    static JSpinner af4; 
    static JSpinner af6; 
    static JSpinner af8; 
    static JSpinner af3; 
    static JSpinner af1; 
    static JSpinner af5; 
    static JSpinner af7; 

    static JLabel lblNewLabel; 
    static JLabel label; 

    public FrameA() { 
     setTitle("Notenrechner"); 
     setIconImage(Toolkit.getDefaultToolkit().getImage(FrameA.class.getResource("/me/imfrozen/icon.png"))); 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     setBounds(100, 100, 500, 400); 

     JLabel lblSchulaufgaben = new JLabel("Schulaufgaben"); 
     lblSchulaufgaben.setFont(new Font("Tahoma", Font.PLAIN, 20)); 

     JLabel lblExen = new JLabel("Stegreifaufgaben"); 
     lblExen.setFont(new Font("Tahoma", Font.PLAIN, 20)); 

     JLabel lblAbfragen = new JLabel("Abfragen"); 
     lblAbfragen.setFont(new Font("Tahoma", Font.PLAIN, 20)); 

     JSpinner sa5 = new JSpinner(); 
     sa5.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa5.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     sa6 = new JSpinner(); 
     sa6.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa6.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     sa7 = new JSpinner(); 
     sa7.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa7.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     sa8 = new JSpinner(); 
     sa8.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa8.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     sa1 = new JSpinner(); 
     sa1.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa1.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     sa2 = new JSpinner(); 
     sa2.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa2.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     sa3 = new JSpinner(); 
     sa3.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa3.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     sa4 = new JSpinner(); 
     sa4.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     sa4.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     ex2 = new JSpinner(); 

     ex2.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex2.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     ex3 = new JSpinner(); 


     ex3.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex3.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     ex7 = new JSpinner(); 


     ex7.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex7.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     ex8 = new JSpinner(); 


     ex8.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex8.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     ex5 = new JSpinner(); 


     ex5.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex5.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     ex4 = new JSpinner(); 


     ex4.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex4.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     ex6 = new JSpinner(); 


     ex6.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex6.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     ex1 = new JSpinner(); 


     ex1.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     ex1.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     af2 = new JSpinner(); 


     af2.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af2.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     af4 = new JSpinner(); 


     af4.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af4.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     af6 = new JSpinner(); 


     af6.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af6.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     af8 = new JSpinner(); 


     af8.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af8.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     af3 = new JSpinner(); 


     af3.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af3.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     af1 = new JSpinner(); 


     af1.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af1.setFont(new Font("Tahoma", Font.PLAIN, 30)); 
     af5 = new JSpinner(); 


     af5.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af5.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     af7 = new JSpinner(); 
     af7.setModel(new SpinnerNumberModel(0, 0, 6, 1)); 
     af7.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     lblNewLabel = new JLabel("Dein Notendurchschnitt:"); 
     lblNewLabel.setFont(new Font("Tahoma", Font.PLAIN, 30)); 

     label = new JLabel("" + rechner.note);   
     label.setFont(new Font("Tahoma", Font.PLAIN, 30)); 





     GroupLayout groupLayout = new GroupLayout(getContentPane()); 
     groupLayout.setHorizontalGroup(
      groupLayout.createParallelGroup(Alignment.LEADING) 
       .addGroup(groupLayout.createSequentialGroup() 
        .addGap(37) 
        .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
         .addComponent(lblNewLabel) 
         .addGroup(groupLayout.createSequentialGroup() 
          .addComponent(lblSchulaufgaben) 
          .addGap(33) 
          .addComponent(lblExen) 
          .addGap(36) 
          .addComponent(lblAbfragen)) 
         .addGroup(groupLayout.createSequentialGroup() 
          .addComponent(sa1, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(10) 
          .addComponent(sa5, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(63) 
          .addComponent(ex2, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(10) 
          .addComponent(ex5, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(38) 
          .addComponent(af1, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(10) 
          .addComponent(af2, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
         .addGroup(groupLayout.createSequentialGroup() 
          .addComponent(sa2, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(10) 
          .addComponent(sa6, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(63) 
          .addComponent(ex3, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(10) 
          .addComponent(ex4, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(38) 
          .addComponent(af3, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addGap(10) 
          .addComponent(af4, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
         .addGroup(groupLayout.createSequentialGroup() 
          .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
           .addGroup(groupLayout.createSequentialGroup() 
            .addComponent(sa3, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
            .addGap(10) 
            .addComponent(sa7, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
           .addGroup(groupLayout.createSequentialGroup() 
            .addComponent(sa4, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
            .addPreferredGap(ComponentPlacement.UNRELATED) 
            .addComponent(sa8, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE))) 
          .addGap(63) 
          .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
           .addGroup(groupLayout.createSequentialGroup() 
            .addComponent(ex7, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
            .addPreferredGap(ComponentPlacement.UNRELATED) 
            .addComponent(ex6, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
           .addGroup(groupLayout.createSequentialGroup() 
            .addPreferredGap(ComponentPlacement.RELATED) 
            .addComponent(ex8, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
            .addPreferredGap(ComponentPlacement.UNRELATED) 
            .addComponent(ex1, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE))) 
          .addGap(38) 
          .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
           .addGroup(groupLayout.createSequentialGroup() 
            .addComponent(af5, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
            .addGap(10) 
            .addComponent(af6, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
           .addGroup(groupLayout.createSequentialGroup() 
            .addGroup(groupLayout.createParallelGroup(Alignment.TRAILING) 
             .addComponent(label) 
             .addComponent(af7, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
            .addPreferredGap(ComponentPlacement.UNRELATED) 
            .addComponent(af8, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE))))) 
        .addContainerGap(16, Short.MAX_VALUE)) 
     ); 
     groupLayout.setVerticalGroup(
      groupLayout.createParallelGroup(Alignment.LEADING) 
       .addGroup(groupLayout.createSequentialGroup() 
        .addGap(11) 
        .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
         .addComponent(lblSchulaufgaben, GroupLayout.PREFERRED_SIZE, 31, GroupLayout.PREFERRED_SIZE) 
         .addComponent(lblExen, GroupLayout.PREFERRED_SIZE, 31, GroupLayout.PREFERRED_SIZE) 
         .addComponent(lblAbfragen, GroupLayout.PREFERRED_SIZE, 31, GroupLayout.PREFERRED_SIZE)) 
        .addGap(11) 
        .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
         .addComponent(sa1, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(sa5, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(ex2, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(ex5, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(af1, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(af2, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
        .addGap(11) 
        .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
         .addComponent(sa2, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(sa6, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(ex3, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(ex4, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(af3, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(af4, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
        .addGap(11) 
        .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
         .addComponent(sa3, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(sa7, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addGroup(groupLayout.createParallelGroup(Alignment.BASELINE) 
          .addComponent(ex7, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addComponent(ex6, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
         .addComponent(af5, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
         .addComponent(af6, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
        .addGap(11) 
        .addGroup(groupLayout.createParallelGroup(Alignment.LEADING) 
         .addGroup(groupLayout.createParallelGroup(Alignment.BASELINE) 
          .addComponent(sa4, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addComponent(sa8, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
         .addGroup(groupLayout.createParallelGroup(Alignment.BASELINE) 
          .addComponent(af7, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addComponent(af8, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE)) 
         .addGroup(groupLayout.createParallelGroup(Alignment.BASELINE) 
          .addComponent(ex1, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE) 
          .addComponent(ex8, GroupLayout.PREFERRED_SIZE, 50, GroupLayout.PREFERRED_SIZE))) 
        .addGap(18) 
        .addGroup(groupLayout.createParallelGroup(Alignment.BASELINE) 
         .addComponent(lblNewLabel) 
         .addComponent(label)) 
        .addContainerGap(20, Short.MAX_VALUE)) 
     ); 
     getContentPane().setLayout(groupLayout); 

    } 
}

RECHNER（德语计算器）：

package me.imfrozen; 

public class rechner { 
    public static int note = 1; 
    int a = 0, b = 0, c = 0; 
    public static double sa_ges = 0; 

    int sa1 = (Integer) FrameA.sa1.getValue(); 
    int sa2 = (Integer) FrameA.sa2.getValue(); 
    int sa3 = (Integer) FrameA.sa3.getValue(); 
    int sa4 = (Integer) FrameA.sa4.getValue(); 
    int sa5 = (Integer) FrameA.sa5.getValue(); 
    int sa6 = (Integer) FrameA.sa6.getValue(); 
    int sa7 = (Integer) FrameA.sa7.getValue(); 
    int sa8 = (Integer) FrameA.sa8.getValue(); 

    int ex1 = (Integer) FrameA.ex1.getValue(); 
    int ex2 = (Integer) FrameA.ex2.getValue(); 
    int ex3 = (Integer) FrameA.ex3.getValue(); 
    int ex4 = (Integer) FrameA.ex4.getValue(); 
    int ex5 = (Integer) FrameA.ex5.getValue(); 
    int ex6 = (Integer) FrameA.ex6.getValue(); 
    int ex7 = (Integer) FrameA.ex7.getValue(); 
    int ex8 = (Integer) FrameA.ex8.getValue(); 

    int af1 = (Integer) FrameA.af1.getValue(); 
    int af2 = (Integer) FrameA.af2.getValue(); 
    int af3 = (Integer) FrameA.af3.getValue(); 
    int af4 = (Integer) FrameA.af4.getValue(); 
    int af5 = (Integer) FrameA.af5.getValue(); 
    int af6 = (Integer) FrameA.af6.getValue(); 
    int af7 = (Integer) FrameA.af7.getValue(); 
    int af8 = (Integer) FrameA.af8.getValue(); 


    int sa = 0, ex = 0, af = 0, exaf = 0; 

    { 
    //SCHULAUFGABEN 
    if (sa1 >= 1){ 
     a++; 
    } 
    if (sa2 >= 1){ 
     a++; 
    } 
    if (sa3 >= 1){ 
     a++; 
    } 
    if (sa4 >= 1){ 
     a++; 
    } 
    if (sa5 >= 1){ 
     a++; 
    } 
    if (sa6 >= 1){ 
     a++; 
    } 
    if (sa7 >= 1){ 
     a++; 
    } 
    if (sa8 >= 1){ 
     a++; 
    } 

    //EXEN 
    if (ex1 >= 1){ 
     b++; 
    } 
    if (ex2 >= 1){ 
     b++; 
    } 
    if (ex3 >= 1){ 
     b++; 
    } 
    if (ex4 >= 1){ 
     b++; 
    } 
    if (ex5 >= 1){ 
     b++; 
    } 
    if (ex6 >= 1){ 
     b++; 
    } 
    if (ex7 >= 1){ 
     b++; 
    } 
    if (ex8 >= 1){ 
     b++; 
    } 

    //ABFRAGEN 
    if (af1 >= 1){ 
     c++; 
    } 
    if (af2 >= 1){ 
     c++; 
    } 
    if (af3 >= 1){ 
     c++; 
    } 
    if (af4 >= 1){ 
     c++; 
    } 
    if (af5 >= 1){ 
     c++; 
    } 
    if (af6 >= 1){ 
     c++; 
    } 
    if (af7 >= 1){ 
     c++; 
    } 
    if (af8 >= 1){ 
     c++; 
    } 

    //AUSRECHNEN 
    sa = sa1+sa2+sa3+sa4+sa5+sa6+sa7+sa8; 
    ex = (ex1+ex2+ex3+ex4+ex5+ex6+ex7+ex8)/b; 
    af = (af1+af2+af3+af4+af5+af6+af7+af8)/c; 
    exaf = ex + af; 
    note = (sa + exaf)/a++ ; 
    } 
}

来源

2016-01-15 Fr0zen

其中是codeline：setVisible（true）？ –

如果我的答案有帮助，upvote并接受答案:) –

你缺少你FrameA代码行setVisible(true);，无它，您的代码将不会显示

来源

2016-01-15 19:17:25

尝试：

... 
FrameA frame = new FrameA(); 
frame.pack(); 
frame.setVisible(true);

来源

2016-01-15 19:17:57 csteel

在添加所有组件之前，您可能需要为您的框架设置最小尺寸。 – csteel

Java swing应用程序不启动

回答

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