Comment
Avishek Bhattacharyya
Main program,
January 13, 2010 at 7:26 AM
January 13, 2010 at 7:26 AM
Pls give me the program for the calculator.also pls point out if I could import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class Calculator implements ActionListener
{
Frame f;
JButton b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15;
Panel p;
TextField tf1;
GridLayout gl;
Calculator()
{
f=new Frame("Calculator");
p=new Panel();
b1=new JButton("0");
b1.addActionListener(this);
b2=new JButton("1");
b2.addActionListener(this);
b3=new JButton("2");
b3.addActionListener(this);
b4=new JButton("3");
b4.addActionListener(this);
b5=new JButton("4");
b5.addActionListener(this);
b6=new JButton("5");
b6.addActionListener(this);
b7=new JButton("6");
b7.addActionListener(this);
b8=new JButton("7");
b8.addActionListener(this);
b9=new JButton("8");
b9.addActionListener(this);
b10=new JButton("9");
b10.addActionListener(this);
b11=new JButton("+");
b11.addActionListener(this);
b12=new JButton("-");
b12.addActionListener(this);
b13=new JButton("x");
b13.addActionListener(this);
b14=new JButton("/");
b14.addActionListener(this);
tf1=new TextField(20);
p.add(tf1);
tf1.setBackground(Color.yellow);
gl=new GridLayout(4,4,10,20);
p.setLayout(gl);
p.add(b1);p.add(b2);p.add(b3);p.add(b4);p.add(b5);p.add(b6);p.add(b7);p.add(b8);p.add(b9);p.add(b10);p.add(b11);p.add(b12);p.add(b13);p.add(b14);
f.add(p);
f.setSize(100,200);
f.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==b1)
{
String s1=b1.getText();
tf1.setText(s1);
}
if(e.getSource()==b2)
{
String s1=b2.getText();
tf1.setText(s1);
}
if(e.getSource()==b3)
{
String s1=b3.getText();
tf1.setText(s1);
}
if(e.getSource()==b4)
{
String s1=b4.getText();
tf1.setText(s1);
}
if(e.getSource()==b5)
{
String s1=b5.getText();
tf1.setText(s1);
}
if(e.getSource()==b6)
{
String s1=b6.getText();
tf1.setText(s1);
}
if(e.getSource()==b7)
{
String s7=b7.getText();
tf1.setText(s1);
}
if(e.getSource()==b8)
{
String s1=b8.getText();
tf1.setText(s1);
}
if(e.getSource()==b9)
{
String s1=b9.getText();
tf1.setText(s1);
}
if(e.getSource()==b10)
{
String s1=b10.getText();
tf1.setText(s1);
}
if(e.getSource()==b11)
{
String s1=b11.getText();
tf1.setText(s1);
}
if(e.getSource()==b12)
{
String s1=b1.getText();
tf1.setText(s1);
}
if(e.getSource()==b13)
{
String s1=b13.getText();
tf1.setText(s1);
}
if(e.getSource()==b14)
{
String s1=b14.getText();
tf1.setText(s1);
}
}
public static void main(String args[])
{
Calculator c=new Calculator();
}
} this program work.
View All Comments | View Tutorial
import javax.swing.*;
import java.awt.event.*;
class Calculator implements ActionListener
{
Frame f;
JButton b1,b2,b3,b4,b5,b6,b7,b8,b9,b10,b11,b12,b13,b14,b15;
Panel p;
TextField tf1;
GridLayout gl;
Calculator()
{
f=new Frame("Calculator");
p=new Panel();
b1=new JButton("0");
b1.addActionListener(this);
b2=new JButton("1");
b2.addActionListener(this);
b3=new JButton("2");
b3.addActionListener(this);
b4=new JButton("3");
b4.addActionListener(this);
b5=new JButton("4");
b5.addActionListener(this);
b6=new JButton("5");
b6.addActionListener(this);
b7=new JButton("6");
b7.addActionListener(this);
b8=new JButton("7");
b8.addActionListener(this);
b9=new JButton("8");
b9.addActionListener(this);
b10=new JButton("9");
b10.addActionListener(this);
b11=new JButton("+");
b11.addActionListener(this);
b12=new JButton("-");
b12.addActionListener(this);
b13=new JButton("x");
b13.addActionListener(this);
b14=new JButton("/");
b14.addActionListener(this);
tf1=new TextField(20);
p.add(tf1);
tf1.setBackground(Color.yellow);
gl=new GridLayout(4,4,10,20);
p.setLayout(gl);
p.add(b1);p.add(b2);p.add(b3);p.add(b4);p.add(b5);p.add(b6);p.add(b7);p.add(b8);p.add(b9);p.add(b10);p.add(b11);p.add(b12);p.add(b13);p.add(b14);
f.add(p);
f.setSize(100,200);
f.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==b1)
{
String s1=b1.getText();
tf1.setText(s1);
}
if(e.getSource()==b2)
{
String s1=b2.getText();
tf1.setText(s1);
}
if(e.getSource()==b3)
{
String s1=b3.getText();
tf1.setText(s1);
}
if(e.getSource()==b4)
{
String s1=b4.getText();
tf1.setText(s1);
}
if(e.getSource()==b5)
{
String s1=b5.getText();
tf1.setText(s1);
}
if(e.getSource()==b6)
{
String s1=b6.getText();
tf1.setText(s1);
}
if(e.getSource()==b7)
{
String s7=b7.getText();
tf1.setText(s1);
}
if(e.getSource()==b8)
{
String s1=b8.getText();
tf1.setText(s1);
}
if(e.getSource()==b9)
{
String s1=b9.getText();
tf1.setText(s1);
}
if(e.getSource()==b10)
{
String s1=b10.getText();
tf1.setText(s1);
}
if(e.getSource()==b11)
{
String s1=b11.getText();
tf1.setText(s1);
}
if(e.getSource()==b12)
{
String s1=b1.getText();
tf1.setText(s1);
}
if(e.getSource()==b13)
{
String s1=b13.getText();
tf1.setText(s1);
}
if(e.getSource()==b14)
{
String s1=b14.getText();
tf1.setText(s1);
}
}
public static void main(String args[])
{
Calculator c=new Calculator();
}
} this program work.
View All Comments | View Tutorial
Related Tutorial and Articles
If you are facing any programming issue, such as compilation errors or not able to find the code you are looking for.
Ask your questions, our development team will try to give answers to your questions.
Tutorial Topics
