question 27)

which of the following is the correct syntax for suggesting that the jvm performs garbage collection

1) system.free();
2) system.setgarbagecollection();
3) system.out.gc();
4) system.gc();

question 28)

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

public class as{
    int i = 10;
    int j;
    char z= 1;
    boolean b;
    public static void main(string argv[]){
 as a = new as();
 a.amethod();
    }
    public void amethod(){
        system.out.println(j);
        system.out.println(b);                
    }
}

1) compilation succeeds and at run time an output of 0 and false
2) compilation succeeds and at run time an output of 0 and true
3) compile time error b is not initialised
4) compile time error z must be assigned a char value

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