格林模拟试题三（下）(5)

  question 45)

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

public class sandys{private int court;public static void main(string argv){ sandys s = new sandys(99); system.out.println(s.court); }sandys(int ballcount){ court=ballcount; }}

2) compile time error, s is not initialized when the system.out method is called
4) compilation and run with an output of 99

question 46)

which of the following statements are true?

1) a method cannot be overloaded to be less public in a child class
3) to be overridden a method must have the same name, parameter and return types

question 47)

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

class base{base(){ system.out.println("base"); }}public class checket extends base{public static void main(string argv){ checket c = new checket(); super(); }checket(){ system.out.println("checket"); } }

1) compile time error
3) base followed by checket