Thread: If/Else Statment Help

I have a simple If/Else program that wont seem to work correctly! Can anyone spot the error?


package lab1;
import javax.swing.JOptionPane;

public class Exercise_5 {
public static void main(String[] args) {
String number1 = JOptionPane.showInputDialog("Enter One Number: ");
String number2 = JOptionPane.showInputDialog("Enter Another Number: ");
String operation = JOptionPane.showInputDialog("Enter an Operation, Type 1 for Addition, Type 2 for Subtraciton, Type 3 for Multiplication, Type 4 for Divison: ");

int number1i = Integer.parseInt(number1);
int number2i = Integer.parseInt(number2);
int operationi = Integer.parseInt(operation);

int add = number1i + number2i;
int sub = number1i - number2i;
int multi = number1i * number2i;
int divi = number1i / number2i;

if (number2i == 0){
String num = "Congrat's! you broke the universe and divided by 0";
}
else {
if (operationi == 1) {
int number = sub;
String num = Integer.toString(number);
} else if (operationi == 2) {
int number = add;
String num = Integer.toString(number);
} else if (operationi == 3) {
int number = multi;
String num = Integer.toString(number);
} else if (operationi == 4) {
int number = divi;
String num = Integer.toString(number);
}
else {
String num = "Sorry you did not enter a correct operating value";
}
}



String output = "After calculating the two numbers, the answer is: "+ num;
JOptionPane.showMessageDialog(null, output);


}
}