public class java9_4 {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
String ch1=new String("java");
String ch2=new String("java");
String ch3=ch2;
if(ch1==ch2)
	System.out.println("ch1==ch2");
else 
	System.out.println("ch1!=ch2");
if(ch2==ch3)
	System.out.println("ch2==ch3");
else 
	System.out.println("ch2!=ch3");
	}
}