Structure of the Problem Requirements
In this problem we will learn how to make a Scientific calculator with GUI in Java. The Calculator perform all mathematical calculation including Sin Cos and Tan functions. We write this code in Eclipse and and you can run in as well in Netbeans. Here is the complete source code of this problem which help you in better understanding.
Source Code
Calculator.Java
public class Calculator {
int x,y;
public Calculator()
{ x=0;
y=0;
}
int sum(int a,int b)
{ int c=a+b;
return c;
}
int sum(int a,int b,int c)
{ int d=a+b+c;
return d;
}
float sum(float a,float b)
{ float c=a+b;
return c;
}
int mul(int a,int b)
{ int c=a*b;
return c;
}
int mul(int a,int b,int c)
{ int d=a*b*c;
return d;
}
float mul(float a,float b)
{ float c=a*b;
return c;
}
int div(int a,int b)
{ int c=a/b;
return c;
}
int div(int a,int b,int c)
{ int d=a/b/c;
return d;
}
float div(float a,float b)
{ float c=a/b;
return c;
}
int sub(int a,int b)
{ int c=a-b;
return c;
}
int sub(int a,int b,int c)
{ int d=a-b-c;
return d;
}
float sub(float a,float b)
{ float c=a-b;
return c;
}
double sin(double a)
{
Math.sin(a);
return Math.sin(a);
}
double cos(double b)
{
Math.cos(b);
return Math.cos(b);
}
double tan(double c)
{
Math.tan(c);
return Math.tan(c);
}
double log(double d)
{
Math.log(d);
return Math.log(d);
}
double log10(double l)
{
return Math.log10(x)/Math.log(10);
}
int remainder(int a,int b)
{
int c=(a/b);
int d=(c*b);
int e=(-d+a);
return e;
}
double power(int a,int b)
{
double p = Math.pow(a, b);
return p;
}
int isPrime(int n)
{
for(int i=2;2*i<n;i++){
if(n%i==0)
return 0;
}
return 1;
}
int fact(int n)
{
int num=n,fact=1;
for (int a=num;a>0;a--)
fact*=a;
return fact;
}
}
Calculatorform.Java
public class Calculatorform extends javax.swing.JFrame {
public Calculatorform() {
initComponents();
}
Calculator obj=new Calculator();
/**
* 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">//GEN-BEGIN:initComponents
private void initComponents() {
jCheckBox1 = new javax.swing.JCheckBox();
jTextField1 = new javax.swing.JTextField();
txtVal1 = new javax.swing.JTextField();
txtVal2 = new javax.swing.JTextField();
BtnPlus = new javax.swing.JButton();
jLabel2 = new javax.swing.JLabel();
BtnMinus = new javax.swing.JButton();
BtnMultiply = new javax.swing.JButton();
BtnDivide = new javax.swing.JButton();
jLabel3 = new javax.swing.JLabel();
btnSine = new javax.swing.JButton();
btnTangent = new javax.swing.JButton();
btnCosine = new javax.swing.JButton();
btnLog = new javax.swing.JButton();
btnLn = new javax.swing.JButton();
btnpower = new javax.swing.JButton();
btnRemainder = new javax.swing.JButton();
btnFactorial = new javax.swing.JButton();
jCheckBox1.setText("jCheckBox1");
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jTextField1.setText("jTextField1");
txtVal1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txtVal1ActionPerformed(evt);
}
});
txtVal2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
txtVal2ActionPerformed(evt);
}
});
BtnPlus.setText("+");
BtnPlus.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BtnPlusActionPerformed(evt);
}
});
jLabel2.setText("Enter Second Value");
BtnMinus.setText("-");
BtnMinus.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BtnMinusActionPerformed(evt);
}
});
BtnMultiply.setText("*");
BtnMultiply.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BtnMultiplyActionPerformed(evt);
}
});
BtnDivide.setText("/");
BtnDivide.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BtnDivideActionPerformed(evt);
}
});
jLabel3.setText("Enter First Value");
btnSine.setText("Sin");
btnSine.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnSineActionPerformed(evt);
}
});
btnTangent.setText("Tan");
btnTangent.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnTangentActionPerformed(evt);
}
});
btnCosine.setText("Cos");
btnCosine.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnCosineActionPerformed(evt);
}
});
btnLog.setText("log");
btnLog.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnLogActionPerformed(evt);
}
});
btnLn.setText("ln");
btnLn.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnLnActionPerformed(evt);
}
});
btnpower.setText("Po");
btnpower.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnpowerActionPerformed(evt);
}
});
btnRemainder.setText("Rem");
btnRemainder.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnRemainderActionPerformed(evt);
}
});
btnFactorial.setText("fac");
btnFactorial.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btnFactorialActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(36, 36, 36)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 0, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel2)
.addGap(0, 72, Short.MAX_VALUE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(txtVal1)
.addComponent(txtVal2)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(BtnPlus, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(BtnMultiply, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(btnSine, javax.swing.GroupLayout.DEFAULT_SIZE, 51, Short.MAX_VALUE))
.addGap(22, 22, 22)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(btnCosine, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(BtnMinus, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(BtnDivide, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGap(59, 59, 59))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(btnRemainder, javax.swing.GroupLayout.PREFERRED_SIZE, 54, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(btnFactorial, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(btnTangent, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(btnLn, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGap(22, 22, 22)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(btnLog, javax.swing.GroupLayout.DEFAULT_SIZE, 51, Short.MAX_VALUE)
.addComponent(btnpower, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
.addGap(12, 12, 12)))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(31, 31, 31))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel3)
.addComponent(txtVal1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(21, 21, 21)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel2)
.addComponent(txtVal2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(BtnPlus)
.addComponent(BtnMinus))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(BtnMultiply)
.addComponent(BtnDivide))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(btnCosine, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(btnSine, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(btnTangent, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(btnLog, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnLn)
.addComponent(btnpower))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btnRemainder)
.addComponent(btnFactorial))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void txtVal1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_txtVal1ActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_txtVal1ActionPerformed
private void txtVal2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_txtVal2ActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_txtVal2ActionPerformed
private void BtnPlusActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_BtnPlusActionPerformed
String a=txtVal1.getText();
int V1=Integer.parseInt(a);
String b=txtVal2.getText();
int V2=Integer.parseInt(b);
int c=obj.sum(V1, V2);
txtVal1.setText(""+c);
txtVal2.setText("");
}//GEN-LAST:event_BtnPlusActionPerformed
private void BtnMinusActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_BtnMinusActionPerformed
String a=txtVal1.getText();
int V1=Integer.parseInt(a);
String b=txtVal2.getText();
int V2=Integer.parseInt(b);
int c=obj.sub(V1, V2);
txtVal1.setText(""+c);
txtVal2.setText("");
}//GEN-LAST:event_BtnMinusActionPerformed
private void BtnMultiplyActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_BtnMultiplyActionPerformed
String a=txtVal1.getText();
int V1=Integer.parseInt(a);
String b=txtVal2.getText();
int V2=Integer.parseInt(b);
int c=obj.mul(V1, V2);
txtVal1.setText(""+c);
txtVal2.setText("");
}//GEN-LAST:event_BtnMultiplyActionPerformed
private void BtnDivideActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_BtnDivideActionPerformed
String a=txtVal1.getText();
float V1=Integer.parseInt(a);
String b=txtVal2.getText();
float V2=Integer.parseInt(b);
float c=obj.div(V1, V2);
txtVal1.setText(""+c);
txtVal2.setText("");
}//GEN-LAST:event_BtnDivideActionPerformed
private void btnTangentActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnTangentActionPerformed
String a=txtVal1.getText();
double v=Double.parseDouble(a);
v=Math.toRadians(v);
double c=obj.tan(v);
txtVal1.setText(""+c);
}//GEN-LAST:event_btnTangentActionPerformed
private void btnCosineActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnCosineActionPerformed
String a=txtVal1.getText();
double v=Double.parseDouble(a);
v=Math.toRadians(v);
double c=obj.cos(v);
txtVal1.setText(""+c);
}//GEN-LAST:event_btnCosineActionPerformed
private void btnSineActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnSineActionPerformed
String a=txtVal1.getText();
double v=Double.parseDouble(a);
v=Math.toRadians(v);
double c=obj.sin(v);
txtVal1.setText(""+c);
}//GEN-LAST:event_btnSineActionPerformed
private void btnLogActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnLogActionPerformed
String a=txtVal1.getText();
double v=Double.parseDouble(a);
double c=obj.log(v);
txtVal1.setText(""+c);
}//GEN-LAST:event_btnLogActionPerformed
private void btnLnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnLnActionPerformed
String a=txtVal1.getText();
double v=Double.parseDouble(a);
double c=obj.log10(v);
txtVal1.setText(""+c);
}//GEN-LAST:event_btnLnActionPerformed
private void btnpowerActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnpowerActionPerformed
String a=txtVal1.getText();
int V1=Integer.parseInt(a);
String b=txtVal2.getText();
int V2=Integer.parseInt(b);
double c=obj.power(V1,V2);
txtVal1.setText(""+c);
txtVal2.setText("");
}//GEN-LAST:event_btnpowerActionPerformed
private void btnRemainderActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnRemainderActionPerformed
String a=txtVal1.getText();
int V1=Integer.parseInt(a);
String b=txtVal2.getText();
int V2=Integer.parseInt(b);
double c=obj.remainder(V1, V2);
txtVal1.setText(""+c);
txtVal2.setText("");
}//GEN-LAST:event_btnRemainderActionPerformed
private void btnFactorialActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnFactorialActionPerformed
String a=txtVal1.getText();
int v=Integer.parseInt(a);
int c=obj.fact(v);
txtVal1.setText(""+c);
}//GEN-LAST:event_btnFactorialActionPerformed
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Calculatorform.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Calculatorform.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Calculatorform.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Calculatorform.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Calculatorform().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton BtnDivide;
private javax.swing.JButton BtnMinus;
private javax.swing.JButton BtnMultiply;
private javax.swing.JButton BtnPlus;
private javax.swing.JButton btnCosine;
private javax.swing.JButton btnFactorial;
private javax.swing.JButton btnLn;
private javax.swing.JButton btnLog;
private javax.swing.JButton btnRemainder;
private javax.swing.JButton btnSine;
private javax.swing.JButton btnTangent;
private javax.swing.JButton btnpower;
private javax.swing.JCheckBox jCheckBox1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField txtVal1;
private javax.swing.JTextField txtVal2;
// End of variables declaration//GEN-END:variables
}
Output of the Program
 |
| GUI Scientific Calculator in Java |
Asad Niazi is Software Engineer , Programmer, Web Developers and a young mentor of Tech Solutions Desk and Blogging Solutions . Asad Love to writes about Technology, Programming, Blogging and make money online.
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