public static void main(String[] args) {

String str1 = "Core2Web"; // String Constant Pool

String str2 = new String("Core2Web"); // Heap

char ch[]={'C','2','W'}; // Heap

String str3 = new String(ch);

System.out.println(System.identityHashCode(str1));

System.out.println(System.identityHashCode(str2));

System.out.println(System.identityHashCode(str3));

String str4 = "Core2Web";

String str5 = new String("Core2Web");

//Identity HashCode

System.out.println(System.identityHashCode(str4));

System.out.println(System.identityHashCode(str5));

System.out.println(System.identityHashCode(ch));

}