/** * Created by admin  */public class Test{    public static void main(String[] args){   /*     if(args==null||new Test(){
    {Test.main(null);}}.equals("abcde")){            System.out.println("a");        }else{            System.out.println("b");        }*/        if(System.out.printf("a")==null){            System.out.println("a");        }else{            System.out.println("b");        }    }}