public class StringCompareDemo
{  

     
public static void main(String args[ ]) 
{
	String val1 = "Sunday";
		String val2 = "Sunny";
		String val3 = "Sunny";
		String val4 = "sunny";
			 
		System.out.println();
		
		System.out.println(val1 + " & " + val2 + " equals returns: " +(val1.equals(val2)) );
		System.out.println(val2 + " & " + val3 + " equals returns: " +(val2.equals(val3))+ "\n" );

		System.out.println(val1 + " & " + val2 + " compareTo returns: " + (val1.compareTo(val2))); 
		//-10 decimal difference between d(100) & n(110)
		System.out.println(val2 + " & " + val3 + " compareTo returns: " + (val2.compareTo(val3))); 
		// all match return 0
		System.out.println(val4 + " & " + val3 + " compareTo returns: " + (val4.compareTo(val3)+ "\n")); 
		//+ 32 decimal difference between s(115) & S(83)

					System.out.println(val3 + " & " + val4 + " equalsIgnoreCase returns: " +(val3.equalsIgnoreCase(val4))+ "\n" );

		System.out.println(val1 + " & " + val2 + " compareToIgnoreCase returns: " + (val1.compareToIgnoreCase(val2))); 
		//-10 decimal difference between d(100) & n(110)
		System.out.println(val2 + " & " + val3 + " comparToIgnoreCase returns: " + (val2.compareToIgnoreCase(val3))); 
		System.out.println(val4 + " & " + val3 + " compareToIgnoreCase returns: " + (val4.compareToIgnoreCase(val3))); 
		//+ 32 decimal difference between s(115) & S(83)



		System.out.println();

		System.out.println();

		System.out.println();

		System.out.println();



		/* val1.equalsIgnoreCase(val2)
val1.compareToIgnoreCase(val2) < 0
val1.compareToIgnoreCase (val2) == 0
val1.compareToIgnoreCase (val2) > 0 */
			
		  
		  
 } //closing main method
} //closing class header

OUTPUT:
Sunday & Sunny equals returns: false
Sunny & Sunny equals returns: true

Sunday & Sunny compareTo returns: -10
Sunny & Sunny compareTo returns: 0
sunny & Sunny compareTo returns: 32

Sunny & sunny equalsIgnoreCase returns: true

Sunday & Sunny compareToIgnoreCase returns: -10
Sunny & Sunny comparToIgnoreCase returns: 0
sunny & Sunny compareToIgnoreCase returns: 0