newapplet.java

用netbean的applet形式编写的计算器

        jButton22.setText("BackSpace");
        jButton22.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton22ActionPerformed(evt);
            }
        });
        add(jButton22, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 80, -1, -1));

        jButton23.setText("记忆");
        jButton23.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton23ActionPerformed(evt);
            }
        });
        add(jButton23, new org.netbeans.lib.awtextra.AbsoluteConstraints(110, 80, 70, -1));

        jButton24.setText("π");
        jButton24.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton24ActionPerformed(evt);
            }
        });
        add(jButton24, new org.netbeans.lib.awtextra.AbsoluteConstraints(180, 80, 60, -1));

        jButton25.setText("清零");
        jButton25.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton25ActionPerformed(evt);
            }
        });
        add(jButton25, new org.netbeans.lib.awtextra.AbsoluteConstraints(240, 80, -1, -1));

        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setText("tusion个人作品");
        add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 310, 120, -1));

        jButton26.setText("x^y");
        jButton26.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton26ActionPerformed(evt);
            }
        });
        add(jButton26, new org.netbeans.lib.awtextra.AbsoluteConstraints(180, 230, 60, -1));

        jButton27.setText("说明");
        jButton27.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton27ActionPerformed(evt);
            }
        });
        add(jButton27, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 260, 90, -1));

        jButton28.setText("%");
        jButton28.setActionCommand("jButton28");
        jButton28.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton28ActionPerformed(evt);
            }
        });
        add(jButton28, new org.netbeans.lib.awtextra.AbsoluteConstraints(180, 260, 60, -1));
    }// </editor-fold>//GEN-END:initComponents

private void jButton15ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton15ActionPerformed
// TODO add your handling code here:
    CommandSign("x");
}//GEN-LAST:event_jButton15ActionPerformed

private void jButton25ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton25ActionPerformed
// TODO add your handling code here:
    numberSign("清零");
}//GEN-LAST:event_jButton25ActionPerformed

private void jButton10ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton10ActionPerformed
// TODO add your handling code here:
    numberSign("0");
}//GEN-LAST:event_jButton10ActionPerformed

private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton11ActionPerformed
// TODO add your handling code here:
    numberSign("+/-");
}//GEN-LAST:event_jButton11ActionPerformed

private void jButton12ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton12ActionPerformed
// TODO add your handling code here:
    numberSign(".");
}//GEN-LAST:event_jButton12ActionPerformed

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
// TODO add your handling code here:
    numberSign("1");
}//GEN-LAST:event_jButton1ActionPerformed

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
// TODO add your handling code here:
    numberSign("2");
}//GEN-LAST:event_jButton2ActionPerformed

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton3ActionPerformed
// TODO add your handling code here:
    numberSign("3");
}//GEN-LAST:event_jButton3ActionPerformed

private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton4ActionPerformed
// TODO add your handling code here:
    numberSign("4");
}//GEN-LAST:event_jButton4ActionPerformed

private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton5ActionPerformed
// TODO add your handling code here:
    numberSign("5");
}//GEN-LAST:event_jButton5ActionPerformed

private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton6ActionPerformed
// TODO add your handling code here:
    numberSign("6");
}//GEN-LAST:event_jButton6ActionPerformed

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton7ActionPerformed
// TODO add your handling code here:
    numberSign("7");
}//GEN-LAST:event_jButton7ActionPerformed

private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton8ActionPerformed
// TODO add your handling code here:
    numberSign("8");
}//GEN-LAST:event_jButton8ActionPerformed

private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton9ActionPerformed
// TODO add your handling code here:
    numberSign("9");
}//GEN-LAST:event_jButton9ActionPerformed

private void jButton22ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton22ActionPerformed
// TODO add your handling code here:
    numberSign("BackSpace");
}//GEN-LAST:event_jButton22ActionPerformed

private void jButton23ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton23ActionPerformed
// TODO add your handling code here:
    remmenberResult();
}//GEN-LAST:event_jButton23ActionPerformed

private void jButton24ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton24ActionPerformed
// TODO add your handling code here:
    numberSign("π");
}//GEN-LAST:event_jButton24ActionPerformed

private void jButton13ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton13ActionPerformed
// TODO add your handling code here:
    CommandSign("+");
}//GEN-LAST:event_jButton13ActionPerformed

private void jButton14ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton14ActionPerformed
// TODO add your handling code here:
    CommandSign("-");
}//GEN-LAST:event_jButton14ActionPerformed

private void jButton16ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton16ActionPerformed
// TODO add your handling code here:
    CommandSign("÷");
}//GEN-LAST:event_jButton16ActionPerformed

private void jButton17ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton17ActionPerformed
// TODO add your handling code here:
    calculate1("开方");
}//GEN-LAST:event_jButton17ActionPerformed

private void jButton18ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton18ActionPerformed
// TODO add your handling code here:
    calculate1("立方");
}//GEN-LAST:event_jButton18ActionPerformed

private void jButton19ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton19ActionPerformed
// TODO add your handling code here:
    calculate1("平方");
}//GEN-LAST:event_jButton19ActionPerformed

private void jButton20ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton20ActionPerformed
// TODO add your handling code here:
    calculate1("1/x");
}//GEN-LAST:event_jButton20ActionPerformed

private void jButton21ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton21ActionPerformed
// TODO add your handling code here:
    CommandSign("=");
}//GEN-LAST:event_jButton21ActionPerformed

private void jButton26ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton26ActionPerformed
// TODO add your handling code here:
    CommandSign("x^y");
}//GEN-LAST:event_jButton26ActionPerformed

private void jButton27ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton27ActionPerformed
// TODO add your handling code here:
    statement();   
}//GEN-LAST:event_jButton27ActionPerformed

private void jButton28ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton28ActionPerformed
// TODO add your handling code here:
    percentage();
}//GEN-LAST:event_jButton28ActionPerformed


    // Variables declaration - do not modify//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 jButton19;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton20;
    private javax.swing.JButton jButton21;
    private javax.swing.JButton jButton22;
    private javax.swing.JButton jButton23;
    private javax.swing.JButton jButton24;
    private javax.swing.JButton jButton25;
    private javax.swing.JButton jButton26;
    private javax.swing.JButton jButton27;
    private javax.swing.JButton jButton28;
    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.JLabel jLabel1;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration//GEN-END:variables

    /*此方法处理除了 "+" "-" "*" "/" "=" "x^y"外的其它按钮*/
    public void numberSign(String buttonValue)//处理除了 + - * / = 及科学计算按钮外的其它按钮
    {         
        if(smP)//恢复"说明"按钮初始状态
            smP=false;
    
        String input=buttonValue;
        if (!numStart) //不是数字开始
        {
            this.jTextField1.setText("");//设置初始值
             numStart=true;
             if(input.equals("+/-"))//输入为负号
             this.jTextField1.setText(this.jTextField1.getText()+"-"); //显示负号
             
        }
        
        if(!input.equals("+/-")) 
        {