1.

What is the output of this program?
interface Calculation 
 {
 int var = 0;
 void calculate(int num);
 }
 
 class display implements Calculation 
 {
 int p;
 public void calculate(int num)
 {
 if (num<2)
 {
 p = var;
 }
 else
 {
 p = num * num; 
 }
 }
 }
 
public class interfaces_Example
 {
 
 public static void main(String args[]) 
 {
 display[] array = new display[4];
 
 for(int k=0; k<4; k++)
 array[k] = new display();
 array[0].calculate(0); 
 array[1].calculate(2);
 array[2].calculate(4);
 System.out.print(array[0].p+" " + array[1].p + " " + array[2].p);
 }
 }
A. 0 4 16
B. 4 0 16
C. 16 0 4
D. Compilation Error
E. Runtime Error
Answer» B. 4 0 16


Discussion

No Comment Found

Related MCQs