Stuff

public class A {	public static void main(String[] args) {		System.out.println("string" == "string");		String a, b;		a = "string";		b = "string";		System.out.println(a == b);		a = "str" + "ing";		b = "s" + "tring";		System.out.println(a == b);		String aa, bb;		aa = "";		bb = "";		int i, j;		j = 0;		for (i=0; i<6; i++) {			if (j == 0) {				aa = aa + a.charAt(i);				bb = bb + b.charAt(i);			}			else {				aa = aa + b.charAt(i);				bb = bb + a.charAt(i);			}			j = 1-j;		}		System.out.println(aa + " == " + b + " => " + (aa == bb));	}}