Hello, I'm trying to fix my Java applet to have a fully functional calculator. I managed to create the buttons and have the +, -, /, *, =, and clear buttons WORKING. But, I cant seem to figure out how to get the decimal(.), squareroot, percent(%), reciprocal(1/x), and -/+ buttons working.. Can anyone help??
Code:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/*
* JavaCalculator.java
*
* Created on Mar 12, 2010, 2:59:41 PM
*/
package jCalculator;
/**
*
* @author Owner
*/
public class JavaCalculator extends javax.swing.JFrame {
private double total1 = 0.0;
private double total2 = 0.0;
private char math_operator;
/** Creates new form JavaCalculator */
public JavaCalculator() {
initComponents();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
btnSeven = new javax.swing.JButton();
btnEight = new javax.swing.JButton();
btnNine = new javax.swing.JButton();
btnFour = new javax.swing.JButton();
btnOne = new javax.swing.JButton();
btnFive = new javax.swing.JButton();
btnSix = new javax.swing.JButton();
btnTwo = new javax.swing.JButton();
btnThree = new javax.swing.JButton();
btnZero = new javax.swing.JButton();
btnDivide = new javax.swing.JButton();
btnSquareroot = new javax.swing.JButton();
btnMultiply = new javax.swing.JButton();
btnPercentage = new javax.swing.JButton();
btnMinus = new javax.swing.JButton();
btnReciprocal = new javax.swing.JButton();
btnPlus = new javax.swing.JButton();
btnEquals = new javax.swing.JButton();
btnZero1 = new javax.swing.JButton();
btnZero2 = new javax.swing.JButton();
txtDisplay = new javax.swing.JTextField();
btnClear = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Calculator");
btnSeven.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnSeven.setForeground(new java.awt.Color(0, 153, 153));
btnSeven.setText("7");
btnSeven.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnSevenActionPerformed(evt);
}
});
btnEight.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnEight.setForeground(new java.awt.Color(0, 153, 153));
btnEight.setText("8");
btnEight.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnEightActionPerformed(evt);
}
});
btnNine.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnNine.setForeground(new java.awt.Color(0, 153, 153));
btnNine.setText("9");
btnNine.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnNineActionPerformed(evt);
}
});
btnFour.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnFour.setForeground(new java.awt.Color(0, 153, 153));
btnFour.setText("4");
btnFour.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnFourActionPerformed(evt);
}
});
btnOne.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnOne.setForeground(new java.awt.Color(0, 153, 153));
btnOne.setText("1");
btnOne.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnOneActionPerformed(evt);
}
});
btnFive.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnFive.setForeground(new java.awt.Color(0, 153, 153));
btnFive.setText("5");
btnFive.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnFiveActionPerformed(evt);
}
});
btnSix.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnSix.setForeground(new java.awt.Color(0, 153, 153));
btnSix.setText("6");
btnSix.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnSixActionPerformed(evt);
}
});
btnTwo.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnTwo.setForeground(new java.awt.Color(0, 153, 153));
btnTwo.setText("2");
btnTwo.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnTwoActionPerformed(evt);
}
});
btnThree.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnThree.setForeground(new java.awt.Color(0, 153, 153));
btnThree.setText("3");
btnThree.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnThreeActionPerformed(evt);
}
});
btnZero.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnZero.setForeground(new java.awt.Color(0, 153, 153));
btnZero.setText("0");
btnZero.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnZeroActionPerformed(evt);
}
});
btnDivide.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N
btnDivide.setForeground(new java.awt.Color(204, 0, 0));
btnDivide.setText("/");
btnDivide.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnDivideActionPerformed(evt);
}
});
btnSquareroot.setFont(new java.awt.Font("Arial", 0, 10)); // NOI18N
btnSquareroot.setForeground(new java.awt.Color(0, 153, 153));
btnSquareroot.setText("sqrt");
btnSquareroot.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnSquarerootActionPerformed(evt);
}
});
btnMultiply.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N
btnMultiply.setForeground(new java.awt.Color(204, 0, 0));
btnMultiply.setText("*");
btnMultiply.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnMultiplyActionPerformed(evt);
}
});
btnPercentage.setFont(new java.awt.Font("Arial", 1, 14)); // NOI18N
btnPercentage.setForeground(new java.awt.Color(0, 153, 153));
btnPercentage.setText("%");
btnMinus.setFont(new java.awt.Font("Arial", 1, 14)); // NOI18N
btnMinus.setForeground(new java.awt.Color(204, 0, 0));
btnMinus.setText("-");
btnMinus.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnMinusActionPerformed(evt);
}
});
btnReciprocal.setFont(new java.awt.Font("Arial", 1, 11)); // NOI18N
btnReciprocal.setForeground(new java.awt.Color(0, 153, 153));
btnReciprocal.setText("1/x");
btnReciprocal.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnReciprocalActionPerformed(evt);
}
});
btnPlus.setFont(new java.awt.Font("Arial", 1, 14)); // NOI18N
btnPlus.setForeground(new java.awt.Color(204, 0, 0));
btnPlus.setText("+");
btnPlus.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnPlusActionPerformed(evt);
}
});
btnEquals.setFont(new java.awt.Font("Arial", 1, 14)); // NOI18N
btnEquals.setForeground(new java.awt.Color(204, 0, 0));
btnEquals.setText("=");
btnEquals.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnEqualsActionPerformed(evt);
}
});
btnZero1.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
btnZero1.setForeground(new java.awt.Color(0, 153, 153));
btnZero1.setText("-/+");
btnZero1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnZero1ActionPerformed(evt);
}
});
btnZero2.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N
btnZero2.setForeground(new java.awt.Color(0, 153, 153));
btnZero2.setText(".");
btnZero2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnZero2ActionPerformed(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()
.addComponent(btnSeven, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnEight, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnNine, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnDivide, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnSquareroot, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(btnFour, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnFive, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnSix, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnMultiply, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnPercentage, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(btnOne, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnTwo, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(btnZero, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnZero1, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(btnThree, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnZero2, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(btnPlus, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnEquals, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(btnMinus, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnReciprocal, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnSeven, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnEight, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnNine, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnDivide, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(btnSquareroot, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnFour, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnFive, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnSix, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnMultiply, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(btnPercentage, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnOne, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnTwo, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnThree, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnMinus, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnReciprocal, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnZero, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnPlus, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnEquals, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnZero1, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(btnZero2, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
txtDisplay.setEditable(false);
txtDisplay.setFont(new java.awt.Font("Arial", 0, 14)); // NOI18N
btnClear.setFont(new java.awt.Font("Arial", 1, 14)); // NOI18N
btnClear.setForeground(new java.awt.Color(204, 0, 0));
btnClear.setText("C");
btnClear.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnClearActionPerformed(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()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(176, Short.MAX_VALUE)
.addComponent(btnClear, javax.swing.GroupLayout.PREFERRED_SIZE, 108, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(txtDisplay, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 274, Short.MAX_VALUE)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(txtDisplay, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btnClear, javax.swing.GroupLayout.PREFERRED_SIZE, 45, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
);
pack();
}// </editor-fold>
private void getOperator(String btnText) {
math_operator = btnText.charAt(0);
total1 = total1 + Double.parseDouble(txtDisplay.getText());
txtDisplay.setText("");
}
private void btnOneActionPerformed(java.awt.event.ActionEvent evt) {
String btnOneText = txtDisplay.getText() + btnOne.getText();
txtDisplay.setText(btnOneText);
}
private void btnTwoActionPerformed(java.awt.event.ActionEvent evt) {
String btnTwoText = txtDisplay.getText() + btnTwo.getText();
txtDisplay.setText(btnTwoText);
}
private void btnThreeActionPerformed(java.awt.event.ActionEvent evt) {
String btnThreeText = txtDisplay.getText() + btnThree.getText();
txtDisplay.setText(btnThreeText);
}
private void btnFourActionPerformed(java.awt.event.ActionEvent evt) {
String btnFourText = txtDisplay.getText() + btnFour.getText();
txtDisplay.setText(btnFourText);
}
private void btnFiveActionPerformed(java.awt.event.ActionEvent evt) {
String btnFiveText = txtDisplay.getText() + btnFive.getText();
txtDisplay.setText(btnFiveText);
}
private void btnSixActionPerformed(java.awt.event.ActionEvent evt) {
String btnSixText = txtDisplay.getText() + btnSix.getText();
txtDisplay.setText(btnSixText);
}
private void btnSevenActionPerformed(java.awt.event.ActionEvent evt) {
String btnSevenText = txtDisplay.getText() + btnSeven.getText();
txtDisplay.setText(btnSevenText);
}
private void btnEightActionPerformed(java.awt.event.ActionEvent evt) {
String btnEightText = txtDisplay.getText() + btnEight.getText();
txtDisplay.setText(btnEightText);
}
private void btnNineActionPerformed(java.awt.event.ActionEvent evt) {
String btnNineText = txtDisplay.getText() + btnNine.getText();
txtDisplay.setText(btnNineText);
}
private void btnZeroActionPerformed(java.awt.event.ActionEvent evt) {
String btnZeroText = txtDisplay.getText() + btnZero.getText();
txtDisplay.setText(btnZeroText);
}
private void btnClearActionPerformed(java.awt.event.ActionEvent evt) {
total2 = 0;
txtDisplay.setText("");
}
private void btnEqualsActionPerformed(java.awt.event.ActionEvent evt) {
switch ( math_operator ) {
case '+':
total2 = total1 + Double.parseDouble( txtDisplay.getText( ) ) ;
break;
case '-':
total2 = total1 - Double.parseDouble(txtDisplay.getText( ) );
break;
case '/':
total2 = total1 / Double.parseDouble(txtDisplay.getText( ) );
break;
case '*':
total2 = total1 * Double.parseDouble(txtDisplay.getText( ) );
break;
}
txtDisplay.setText( Double.toString(total2) );
total1 = 0; // TODO add your handling code here:
}
private void btnPlusActionPerformed(java.awt.event.ActionEvent evt) {
String button_text = btnPlus.getText();
getOperator(button_text);
}
private void btnMinusActionPerformed(java.awt.event.ActionEvent evt) {
String button_text = btnMinus.getText();
getOperator(button_text);
}
private void btnMultiplyActionPerformed(java.awt.event.ActionEvent evt) {
String button_text = btnMultiply.getText();
getOperator(button_text);
}
private void btnDivideActionPerformed(java.awt.event.ActionEvent evt) {
String button_text = btnDivide.getText();
getOperator(button_text);
}
private void btnReciprocalActionPerformed(java.awt.event.ActionEvent evt) {
float num,result;
num=Float.parseFloat(btnReciprocal.getText());
result = 1/num;
btnReciprocal.setText(String.valueOf(result));
}
private void btnSquarerootActionPerformed(java.awt.event.ActionEvent evt) {
float num,result;
num=Float.parseFloat(btnSquareroot.getText());
result=num*num;
btnSquareroot.setText(String.valueOf(result));
}
private void btnZero1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void btnZero2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new JavaCalculator().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton btnClear;
private javax.swing.JButton btnDivide;
private javax.swing.JButton btnEight;
private javax.swing.JButton btnEquals;
private javax.swing.JButton btnFive;
private javax.swing.JButton btnFour;
private javax.swing.JButton btnMinus;
private javax.swing.JButton btnMultiply;
private javax.swing.JButton btnNine;
private javax.swing.JButton btnOne;
private javax.swing.JButton btnPercentage;
private javax.swing.JButton btnPlus;
private javax.swing.JButton btnReciprocal;
private javax.swing.JButton btnSeven;
private javax.swing.JButton btnSix;
private javax.swing.JButton btnSquareroot;
private javax.swing.JButton btnThree;
private javax.swing.JButton btnTwo;
private javax.swing.JButton btnZero;
private javax.swing.JButton btnZero1;
private javax.swing.JButton btnZero2;
private javax.swing.JPanel jPanel1;
private javax.swing.JTextField txtDisplay;
// End of variables declaration
}
Comment