mycounter.java

一个计算器代码

        );

        layout.linkSize(new java.awt.Component[] {jButton1, jButton10, jButton11, jButton14, jButton15, jButton16, jButton17, jButton18, jButton2, jButton3, jButton4, jButton5, jButton6, jButton7, jButton8, jButton9}, org.jdesktop.layout.GroupLayout.VERTICAL);

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

    private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton14ActionPerformed
    // TODO 将在此处添加您的处理代码：
        if(count==1)
        {
            jTextField1.setText(result);
        }
        else{
            sumTwo=Float.parseFloat(result);
            jTextField1.setText(myCount(sumOne,sumTwo,oper));
            sumOne=Float.parseFloat(jTextField1.getText());
        }
        result="";
        flog=1;
    }//GEN-LAST:event_jButton14ActionPerformed

    private void jButton18ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton18ActionPerformed
    // TODO 将在此处添加您的处理代码：
        if (flog==1){
            oper=4;
            flog=0;
        }
        if (count==1){
            sumOne=Float.parseFloat(result);
            count++;
        }
        else{
            sumTwo=Float.parseFloat(result);
            jTextField1.setText(myCount(sumOne,sumTwo,oper));
            sumOne=Float.parseFloat(jTextField1.getText());
        }
        result="";
        oper=4;
    }//GEN-LAST:event_jButton18ActionPerformed

    private void jButton17ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton17ActionPerformed
    // TODO 将在此处添加您的处理代码：
        if (flog==1){
            oper=3;
            flog=0;
        }
        if (count==1){
            sumOne=Float.parseFloat(result);
            count++;
        }
        else{
            sumTwo=Float.parseFloat(result);
            jTextField1.setText(myCount(sumOne,sumTwo,oper));
            sumOne=Float.parseFloat(jTextField1.getText());
        }
        result="";
        oper=3;
    }//GEN-LAST:event_jButton17ActionPerformed

    private void jButton16ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton16ActionPerformed
    // TODO 将在此处添加您的处理代码：
        if (flog==1){
            oper=2;
            flog=0;
        }
        if (count==1){
            sumOne=Float.parseFloat(result);
            count++;
        }
        else{
            sumTwo=Float.parseFloat(result);
            jTextField1.setText(myCount(sumOne,sumTwo,oper));
            sumOne=Float.parseFloat(jTextField1.getText());
        }
        result="";
        oper=2;
    }//GEN-LAST:event_jButton16ActionPerformed

    private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton15ActionPerformed
    // TODO 将在此处添加您的处理代码：
        if (flog==1){
            oper=1;
            flog=0;
        }
        if (count==1){
            sumOne=Float.parseFloat(result);
            count++;
        }
        else{
            sumTwo=Float.parseFloat(result);
            jTextField1.setText(myCount(sumOne,sumTwo,oper));
            sumOne=Float.parseFloat(jTextField1.getText());
        }
        result="";
        oper=1;
    }//GEN-LAST:event_jButton15ActionPerformed

    private void jButton12ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton12ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText("0.");
        result="";
        point=0;
        oper=0;
        count=1;
        sumOne=0;
        sumTwo=0;
    }//GEN-LAST:event_jButton12ActionPerformed

    private void jButton13ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton13ActionPerformed
    // TODO 将在此处添加您的处理代码：
        if(jTextField1.getText().length()>=1){
            if(jTextField1.getText().substring(jTextField1.getText().length()-1,jTextField1.getText().length()).equals(".")){
                point=0;
            }
            jTextField1.setText(jTextField1.getText().substring(0,jTextField1.getText().length()-1));
            result=result.substring(0,result.length()-1);
        }
    }//GEN-LAST:event_jButton13ActionPerformed

    private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton9ActionPerformed
    // TODO 将在此处添加您的处理代码：
        point++;
        if(point<=1){
            jTextField1.setText(result+".");
            result=jTextField1.getText();
        }
        if(!(result.substring(0,1).equals("0"))){
            result=result.substring(1,result.length()-1);
            jTextField1.setText(result);
        }
    }//GEN-LAST:event_jButton9ActionPerformed

    private void jButton10ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton10ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"0");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton10ActionPerformed

    private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton11ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"3");
        result=jTextField1.getText();
        myZero();
        
    }//GEN-LAST:event_jButton11ActionPerformed

    private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton7ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"2");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton7ActionPerformed

    private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton4ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"1");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton4ActionPerformed

    private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton8ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"6");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton8ActionPerformed

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"5");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton5ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"4");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton5ActionPerformed

    private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton6ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"9");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton6ActionPerformed

    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton3ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"8");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton3ActionPerformed

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
    // TODO 将在此处添加您的处理代码：
        jTextField1.setText(result+"7");
        result=jTextField1.getText();
        myZero();
    }//GEN-LAST:event_jButton2ActionPerformed
    
    private String myCount(float x,float y,int z){
    //myCount()运算处理函数
        String lResult="";
        if(y==0){
            return "除数不为零";
        }else{
            switch(z){
            case 1:
                lResult=Float.toString(x+y);
                break;
            case 2:
                lResult=Float.toString(x-y);
                break;
            case 3:
                lResult=Float.toString(x*y);
                break;
            case 4:
                lResult=Float.toString(x/y);
                break;
            }
        }
        
        return lResult;
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new MyCounter().setVisible(true);
            }
        });
    }
    public void myZero(){
       if(this.jTextField1.getText().length()==2){
           if(this.jTextField1.getText().substring(0,1).equals("0")){
               result=result.substring(1);
               jTextField1.setText(result);
           
           }
       }
    }
    
    // 变量声明 - 不进行修改//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton10;
    private javax.swing.JButton jButton11;
    private javax.swing.JButton jButton12;
    private javax.swing.JButton jButton13;
    private javax.swing.JButton jButton14;
    private javax.swing.JButton jButton15;
    private javax.swing.JButton jButton16;
    private javax.swing.JButton jButton17;
    private javax.swing.JButton jButton18;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JButton jButton4;
    private javax.swing.JButton jButton5;
    private javax.swing.JButton jButton6;
    private javax.swing.JButton jButton7;
    private javax.swing.JButton jButton8;
    private javax.swing.JButton jButton9;
    private javax.swing.JTextField jTextField1;
    // 变量声明结束//GEN-END:variables
    
}