Thread: Help with a simple question

Hey, i have a problem with my school assignment. I can't get the "nummer" to work when i try to run the program. How do i get the "nummer" to work outside the for statement? I know the for statement is not done yet and may be wrong. But i don't get the "nummer" to work.

Sorry for my english if you don't understand.

Thank you for your time.




package uppgift;

import javax.swing.*;

public class Uppgift {

public static void main(String[] args) {
String a = JOptionPane.showInputDialog("Hur många gånger vill du kasta?");
int kast = Integer.parseInt(a);
int kast1;


for (kast1 = 1; kast1 == kast; kast1 = kast1 + 1) {
int nummer = (int) (12.0 * Math.random()) + 1;


}

JOptionPane.showMessageDialog(null, nummer);


}
}

I can't get the "nummer" to work

Do you get an error message? What does "to work" mean?

Your problem is with the scope of the variable nummer. It is only known within the enclosing {} where it is defined. If you want "to see" the variable outside of the {} where it is defined, move the definition of the variable outside of the {}.

Read up on the "scope" concept.

Originally Posted by Norm

Do you get an error message? What does "to work" mean?

Your problem is with the scope of the variable nummer. It is only known within the enclosing {} where it is defined. If you want "to see" the variable outside of the {} where it is defined, move the definition of the variable outside of the {}.

Read up on the "scope" concept.

JOptionPane.showMessageDialog(null, nummer); it don't find int nummer in the for statement, thats what i need to know how i could make it work. Hope you understand better.