public class StringPool {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String str1 = "Hello";
		String str2 = "hello";
		
		//we are not comparing the contents of the strings, we are comparing the string reference
		if(str1 == str2)
		{
			System.out.println("str1 == str2");
		}
		else
		{
			System.out.println("Str1 != str2");
		}
		
		String str3 = new String("Hello");
		String str4 = new String("hello");
		if(str3 == str4)
		{
			System.out.println("str3 == str4");
		}
		else
		{
			System.out.println("Str3 != str4");
		}
		
		if(str3.equalsIgnoreCase(str4))
		{
			System.out.println("str3 and str4 are same string");
		}else {
			
			System.out.println("str3 and str4 are not same string");
		}
		if(str3.compareTo(str4) == 0)
		{
			System.out.println("str3 and str4 are same string");
		}else {
			
			System.out.println("str3 and str4 are not same string");
		}
		
		String myName = "lizhen";
		System.out.println("Hello " + myName);

	}

}