import javax.swing.JOptionPane;
public class sample5
{
    public static void main(){
        int num1 = 10, num2 = 15, sum;
        sum = num1 + num2;
        String strSum;

        strSum = "The sum of " + num1 + " and " + num2 + " is " + sum;

        JOptionPane.showMessageDialog(null, strSum, "SUM OF 2 NUMBERS",
        JOptionPane.INFORMATION_MESSAGE);

    }
}