non static variable cannot be referenced from static context

non static variable cannot be referenced from static context

public class Add{ int foo=7; int bar=8; public int add(int x,int y){ int z=x+y; System.out.println(z); return z; }//add public static void main(String []s){ Add a1=new Add(); a1.add(7,8); Add a2=new Add(); a2.add(foo,bar); }//main }//class

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March 7, 2011 at 1:40 PM

public class Add{
    static int foo=7;
    static int bar=8;
    public int add(int x,int y){
        int z=x+y;
        System.out.println(z);
        return z;
        }
        public static void main(String []s){
            Add a1=new Add(); 
            a1.add(7,8);
            Add a2=new Add();
            a2.add(foo,bar);
        }
}

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