Java compareTo and CompareToIgnoreCase method

/*
1.compareTo
2.compareToIgnoreCase
*/
class sm1
{
	public static void main(String args[])
	{
		String str1=new String("Hello");
		String str2=new String("Hello");
		String str3=new String("hello");
		String str4=new String("netx");
		System.out.println(str1.compareTo(str2));
		System.out.println(str1.compareTo(str3));
		System.out.println(str3.compareTo(str2));
		System.out.println(str3.compareTo(str4));
		System.out.println(str2.compareToIgnoreCase(str3));
		
	}
}