What is the out put of the following code?Class java{Public static void (String [ ] args){int n1=23;int n2=31;int n3=21;if(n1>n2&&n1>n3){System.out.println (n1+"greatest");}else if(n2>n3){System.out.println (n2+"is greatest ");}else{System.out.println (n2+" is greatest ");}}}