格林模拟试题三（下）(6)

  question 48)

which of the following statements are true?

1) static methods cannot be overriden to be non static
3) private methods cannot be overloaded

question 49)

which of the following statements are true?

1) the automatic garbage collection of the jvm prevents programs from ever running out of memory
3) garbage collection is platform independent

question 50)

given the following code

public class sytch{int x=2000;public static void main(string argv){ system.out.println("ms "+argv[1]+"please pay $"+x); }}

what will happen if you attempt to compile and run this code with the command line

java sytch jones diggle

1) compilation and output of ms diggle please pay $2000
3) compilation and output of ms jones please pay $2000

question 51)

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

class base{protected int i = 99;}public class ab{private int i=1;public static void main(string argv){ab a = new ab();a.hallow();} abstract void hallow(){ system.out.println("claines "+i); }}

1) compile time error
3) compilation and output of claines 1