frame.java

平时自己上课时候做的JAV实验代码

        button19.setLabel(".");
        button19.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                button19ActionPerformed(evt);
            }
        });

        panel3.add(button19);

        button20.setLabel("=");
        button20.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                button20ActionPerformed(evt);
            }
        });

        panel3.add(button20);

        button21.setLabel("/");
        button21.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                button21ActionPerformed(evt);
            }
        });

        panel3.add(button21);

        add(panel3);

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void button23ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button23ActionPerformed
// TODO 将在此处添加您的处理代码：

        File f1=new File("c:\\CreatFile.txt");
        System.out.println(f1);
        try{
            f1.createNewFile();
        }catch(IOException e){}
        try{
            System.out.print("Input:");
            int count,n=512;
            byte buffer[]=new byte[n];
            count=System.in.read(buffer);
            FileOutputStream wf=new FileOutputStream("c:\\CreatFile.txt");
            wf.write(buffer,0,count);
            wf.close();
            System.out.println("Save to CreatFile.txt!");
        }
        catch(IOException ioe)
        {
            System.out.println(ioe);
        }
        catch(Exception e)
        {
            System.out.println(e);
        }
    

    }//GEN-LAST:event_button23ActionPerformed

    private void button1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button1ActionPerformed
// TODO 将在此处添加您的处理代码：
        int i=0,j;
        String str=textField1.getText();
        j=str.length();
      textField1.setText(str.substring(i,(j-1)));
    }//GEN-LAST:event_button1ActionPerformed

    private void button3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button3ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText("");
    }//GEN-LAST:event_button3ActionPerformed

    private void button2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button2ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText("0");
    }//GEN-LAST:event_button2ActionPerformed

    private void button19ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button19ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+".");
    }//GEN-LAST:event_button19ActionPerformed

    private void button20ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button20ActionPerformed
// TODO 将在此处添加您的处理代码：
        
     
    }//GEN-LAST:event_button20ActionPerformed

    private void button21ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button21ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"/");
    }//GEN-LAST:event_button21ActionPerformed

    private void button17ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button17ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"*");
    }//GEN-LAST:event_button17ActionPerformed

    private void button11ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button11ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"-");
    }//GEN-LAST:event_button11ActionPerformed

    private void button13ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button13ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"+");
    }//GEN-LAST:event_button13ActionPerformed

    private void button18ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button18ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"0");
    }//GEN-LAST:event_button18ActionPerformed

    private void button6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button6ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"9");
    }//GEN-LAST:event_button6ActionPerformed

    private void button5ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button5ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"8");
    }//GEN-LAST:event_button5ActionPerformed

    private void button4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button4ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"7");
    }//GEN-LAST:event_button4ActionPerformed

    private void button10ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button10ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"6");
    }//GEN-LAST:event_button10ActionPerformed

    private void button9ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button9ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"5");
    }//GEN-LAST:event_button9ActionPerformed

    private void button7ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button7ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"4");
    }//GEN-LAST:event_button7ActionPerformed

    private void button16ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button16ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"3");
    }//GEN-LAST:event_button16ActionPerformed

    private void button14ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button14ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"1");
    }//GEN-LAST:event_button14ActionPerformed

    private void button12ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_button12ActionPerformed
// TODO 将在此处添加您的处理代码：
        String str=textField1.getText();
      textField1.setText(str+"2");
    }//GEN-LAST:event_button12ActionPerformed
    
    /** Exit the Application */
    private void exitForm(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_exitForm
        System.exit(0);
    }//GEN-LAST:event_exitForm
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Frame().setVisible(true);
            }
        });
    }

    private String substring(int i, int i0) {
        return null;
    }
    
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private java.awt.Button button1;
    private java.awt.Button button10;
    private java.awt.Button button11;
    private java.awt.Button button12;
    private java.awt.Button button13;
    private java.awt.Button button14;
    private java.awt.Button button15;
    private java.awt.Button button16;
    private java.awt.Button button17;
    private java.awt.Button button18;
    private java.awt.Button button19;
    private java.awt.Button button2;
    private java.awt.Button button20;
    private java.awt.Button button21;
    private java.awt.Button button22;
    private java.awt.Button button23;
    private java.awt.Button button3;
    private java.awt.Button button4;
    private java.awt.Button button5;
    private java.awt.Button button6;
    private java.awt.Button button7;
    private java.awt.Button button8;
    private java.awt.Button button9;
    private java.awt.Panel panel1;
    private java.awt.Panel panel2;
    private java.awt.Panel panel3;
    private java.awt.TextField textField1;
    // 变量声明结束//GEN-END:variables
    
}