Need help in java project
Okay, here I am submitting you a solution. It is completely tested and in working condition and has no errros.
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import javax.swing.JFrame;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.text.*;
public class calculator implements ActionListener,FocusListener
{
static JFrame frame;
JTextField value1=new JTextField(30);
JTextField value2=new JTextField(30);
JTextField result=new JTextField(30);
JButton mul=new JButton("*");
JButton add=new JButton("+");
JButton sub=new JButton("-");
JButton div=new JButton("/");
calculator()
{frame=new JFrame("calculator");
//Toolkit theKit = frame.getToolkit();
//Dimension wndSize = theKit.getScreenSize();
frame.setBounds(30,30,500,400);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
frame.getContentPane().setBackground(Color.BLACK);
Container con=frame.getContentPane();
con.setLayout(null);
JPanel c=new JPanel();
c.setLayout(null);
con.add(c);
 ImageIcon back = new ImageIcon("blue3.jpg");
       JLabel bg = new JLabel(back);
       bg.setBounds(0, 0, back.getIconWidth(), back.getIconHeight());
   frame.getLayeredPane().add(bg, new Integer(Integer.MIN_VALUE));
       c.setOpaque(false);
       frame.setContentPane(c);
value1.setBounds(200,100,150,20);
value1.addFocusListener(this);
c.add(value1);
value2.setBounds(200,140,150,20);
value2.addFocusListener(this);
c.add(value2);
result.setBounds(200,180,150,20);
c.add(result);
JLabel v1=new JLabel("Value 1");
v1.setBounds(140,100,150,20);
c.add(v1);
JLabel v2=new JLabel("Value 2");
v2.setBounds(140,140,150,20);
c.add(v2);
JLabel re=new JLabel("Result");
re.setBounds(140,180,150,20);
c.add(re);
add.setBounds(100,260,50,20);
add.addActionListener(this);
c.add(add);
sub.setBounds(200,260,50,20);
sub.addActionListener(this);
c.add(sub);
mul.setBounds(300,260,50,20);
mul.addActionListener(this);
c.add(mul);
div.setBounds(400,260,50,20);
div.addActionListener(this);
c.add(div);
frame.setResizable(false);
frame.setVisible(true);
}
public void focusGained(FocusEvent f)
{
if(f.getSource()==value1)
{
result.setText("");
}
if(f.getSource()==value2)
{
result.setText("");
}
}
public void focusLost(FocusEvent l)
{}
public void actionPerformed(ActionEvent e)
{
String ad,su,mu,di,x=value1.getText(),y=value2.getText();
int a=Integer.parseInt(x),b=Integer.parseInt(y),r;
if(e.getSource()==add)
{
r=a+b;
 ad=""+r;
value1.setText("");
value2.setText("");
result.setText(ad);
}
if(e.getSource()==sub)
{
r=a-b;
su=""+r;
value1.setText("");
value2.setText("");
result.setText(su);
}
if(e.getSource()==mul)
{
r=a*b;
mu=""+r;
value1.setText("");
value2.setText("");
result.setText(mu);
}
if(e.getSource()==div)
{
r=a/b;
di=""+r;
value1.setText("");
value2.setText("");
result.setText(di);
}
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}
public static void main(String[]args)
{
new calculator();
}
}
