格林模拟试题三（下）(8)

 question 55)

what will happen when you attempt to compile and run the following code?

public class agg{static public long i=10;public static void main(string argv){ switch(i){ default: system.out.println("no value given"); case 1: system.out.println("one"); case 10: system.out.println("ten"); case 5: system.out.println("five"); } }}

1) compile time error
3) output of "ten"
question 56)

given the following class

public class zeroprint{public static void main(string argv){ int i =0; //here }}

which of the following lines if placed after the comment //here will print out 0.

1) system.out.println(i++);
3) system.out.println(i);
||| question 57)

given the following code

class base {}class agg extends base{ public string getfields(){ string name = "agg"; return name; }}public class avf{public static void main(string argv){ base a = new agg(); //here }}

what code placed after the comment //here will result in calling the getfields method resulting in the output of the string "agg"?

1) system.out.println(a.getfields());
3) system.out.println((base) a.getfields());