//try this code, u will get a basic idea import javax.swing.JOptionPane;public class Addition { public static void main( String args[] ) { String firstNumber; // first string entered by user String secondNumber; // second string entered by user int number1; int number2; int sum; // read in first number from user as a string firstNumber = JOptionPane.showInputDialog( "Enter first integer" ); // read in second number from user as a string secondNumber = JOptionPane.showInputDialog( "Enter second integer" ); // convert numbers from type String to type int number1 = Integer.parseInt( firstNumber ); number2 = Integer.parseInt( secondNumber ); sum = number1 + number2; JOptionPane.showMessageDialog( null, "The sum is " + sum, "Results", JOptionPane.PLAIN_MESSAGE ); System.exit( 0 ); } }
import javax.swing.JOptionPane;public class Addition { public static void main( String args[] )
{
String firstNumber; // first string entered by user
String secondNumber; // second string entered by user
int number1;
int number2;
int sum; // read in first number from user as a string
firstNumber =
JOptionPane.showInputDialog( "Enter first integer" ); // read in second number from user as a string
secondNumber =
JOptionPane.showInputDialog( "Enter second integer" ); // convert numbers from type String to type int
number1 = Integer.parseInt( firstNumber );
number2 = Integer.parseInt( secondNumber ); sum = number1 + number2; JOptionPane.showMessageDialog(
null, "The sum is " + sum, "Results",
JOptionPane.PLAIN_MESSAGE );
System.exit( 0 );
}
}