关系表达式的使用

[code]public class C2_8
{
    public static void main(String args[])
    {
        boolean x,y;
        double a,b;
        a=12.56;
        b=233.23;
        x=(a!=b);
        y=(a==b);
        System.out.println("(a>b)="+(a>b));
        System.out.println("x="+x);
        System.out.println("y="+y);
    }

}