Java toLowerCase() - Character

Character.toLowerCase(chObj);

package com.java.myapp;

public class MyClass {

    public static void main(String[] args) {
         
    	char a = 'a';
    	Character b = new Character('c');
    	Character c = '\n';
    	char d = 'A';
    	
    	 System.out.println(Character.toLowerCase(a));
    	 System.out.println(Character.toLowerCase(b));
    	 System.out.println(Character.toLowerCase(c));
    	 System.out.println(Character.toLowerCase(d));
        	    	
    }
	
}