Hi Friend,

Try the following code:

1)input.java:

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
class input{
public static void main(String[] args)
{
JFrame f=new JFrame();
JPanel p=new JPanel(new GridLayout(4,2));
JLabel l1=new JLabel("Enter first number");
final JTextField text1=new JTextField(20);
JLabel l2=new JLabel("Enter second number");
final JTextField text2=new JTextField(20);
JLabel l3=new JLabel("Result");
final JTextArea area=new JTextArea(4,10);
JButton b=new JButton("Add");
b.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
String value1=text1.getText();
String value2=text2.getText();
int num1=Integer.parseInt(value1);
int num2=Integer.parseInt(value2);

add a=new add();
int sum=a.findSum(num1,num2);
area.setText(Integer.toString(sum));
}
});
p.add(l1);
p.add(text1);
p.add(l2);
p.add(text2);
p.add(l3);
p.add(area);
p.add(b);
f.add(p);
f.pack();
f.setVisible(true);
}
}

2)add.java:

public class add
{
public static int findSum(int num1,int num2){
int sum=num1+num2;
return sum;
}
}

Thanks

thank you soooo much for the reply...am looking for more than that..
am doing a project,to make it simple i gave the program of addition.
sir/mam, i developed frontend with netbeans with buttons and textarea..
am executing a clustering algorithm by pressing the button.
the custering algorithm reads the data from database and it performs clustering.everything is going well.
but the output is not displayed in the textarea...as the textarea is created in input.java file
ouput is executed and it has print stmt in the cluster.java file....where i cannot return values...but i want this cluster.java file to recognise the textarea created in the input.java file..pls how to do this..
if u have ur mail id pls pass it to punithap@gmail.com
so i can contact u personnaly for help to overcome this problem