Question 9:
What code placed after the comment:
// Start For loop
would populate the elements of the array ia[] with values of the variables i ?
public class Lin{
public static void main(String argv[]){
Lin l = new Lin();
l.amethod();
}
public void amethod(){
int ia[] = new int[4];
// Start For loop
{
ia[i] = i;
System.out.println(ia[i]);
}
}
}
A. for(int i=0; i
B. for (int i=0; i
C. for(int i=0; i<4; i++)
D. for(int i=0; i
Question 10:
Consider the following code:
Integer s = new Integer(9);
Integer t = new Integer(9);
Long u = new Long(9);
Which test would return true?
A. (s==u)
B. (s==t)
C. (s.equals(t))
D. (s.equals(9))
E. (s.equals(new Integer(9))
Question 11:
Which of the following is sUCcessfully create an instance of the Vector class and add an element?
A. Vector v = new Vector(99);
v[1]=99;
B. Vector v = new Vector();
v.addElement(99);
C. Vector v = new Vector();
v.add(99);
D. Vector v = new Vector(100);
v.addElement(“99”);
Question 12:
What will happen when you attempt to compile and run the following code?
class Base{
private void amethod(int iBase){
System.out.println(“Base.amethod”);
}
}
class Over extends Base{
public static void main(String argv[]){
Over o = new Over();
int iBase=0;
o.amethod(iBase);
}
public void amethod(int iOver){
System.out.println(“Over.amethod”);
}
}
A. Compile time error complaining that Base.amethod is private
B. Runtime error complaining that Base.amethod is private
C. Output of Base.amethod
D. Output of Over.amethod
Question 13:
What will happen if you try to compile and run the following code?
public class MyClass
public static void main(String arguments[]){
amethod(arguments);
}
public void amethod(String[] arguments)
System.out.println(arguments);
System.out.println(arguments[1]);
}
}
A. Error can't make static reference to void amethod
