/*
    StaticVariables.java
    CIS 160
    David Klick
    2004-04-28

    This program demonstrates the use of static variables.
*/

public class StaticVariables {
    // variables declared outside of methods
    int n1 = 1;
    static int n2 = 2;
    final static int n3 = 3;  // this is a constant
    
    public static void main(String[] args) {
        // next line won't compile because method
        //    is static, but variable isn't static
        // n1 = 10;

        n2 = 20;

        // next line won't compile because you can't
        //    change the valure of a constant (final)
        // n3 = 30;

        // next line won't compile because method
        //    is static, but variable isn't static        
        // System.out.println(n1);

        System.out.println(n2);
        System.out.println(n3);
        System.out.flush();     // not really needed
    }
}

/*  Sample from one run of program:

    20
    3
*/