JAVA String Functions

class file_name{

        public static void main(String ar[]){

                     String s="Anjan";
                     String r="Anjan Developers";
  
                     System.out.println(" Upper Case : "+s.toUpperCase());
                     System.out.println("Lower Case : "+s.toLowerCase());
                      System.out.println(" Character : "+s.charAt(2));
                      System.out.println(" Math String : "+s.equals(r));
                      System.out.println(" Length is : "+s.length());    
        }
} 

OutPut
-------------------
ANJAN
anjan
j
false
5