Character Comparision Ignore Case Program In Java

import java.lang.*;

public class CharCompIgnoreCase{
    public static void main(String[] args) {
        System.out.println("Character comparation to ignore case example!");
        String str1 = "Vinod";
        String str2 = "Vinod";
        String str3 = "vinod";
        CharComp(str1, str2, str3);
    }
    public static void CharComp(String str1, String str2, String str3){
        System.out.println("String1 = " + str1);
        System.out.println("String2 = " + str2);
        System.out.println("String2 = " + str3);
        if(str1.compareToIgnoreCase(str2) == 0){
            System.out.println("String1 and String2 are equal!");
        }
        else{
            System.out.println("String1 and String2 are not equal!");
        }
        if(str1.compareToIgnoreCase(str3) == 0){
            System.out.println("String1 and String3 are equal!");
        }
        else{
            System.out.println("String1 and String3 are not equal!");
        }
        if(str2.compareToIgnoreCase(str3) == 0){
            System.out.println("String2 and String3 are equal!");
        }
        else{
            System.out.println("String2 and String3 are not equal!");
        }
    }
}