MCQs of Methods and Arrays (Object Oriented Programming - I - 3140705)

Object Oriented Programming - I (3140705) MCQs

MCQs of Methods and Arrays

Showing 41 to 44 out of 44 Questions

41.

When you pass an array to a method, the method receives ________ .

(a)	A copy of the array.
(b)	A copy of the first element.
(c)	The reference of the array.
(d)	The length of the array.

42.

What will be the output of the program?

public class Test{
      public static void main(String [] args){
            String s1 = args[1];
            String s2 = args[2];
            String s3 = args[3];
            String s4 = args[4];
            System.out.print(" args[2] = " + s2);
      }
}

and the command-line invocation is C:Java> java Test 1 2 3 4

(a)	args[2] = 2
(b)	args[2] = 3
(c)	args[2] = null
(d)	An exception is thrown at runtime.

43.

What is the value of a[1] after the following code is executed?

int[] a = {0, 2, 4, 1, 3};
for(int i = 0; i < a.length; i++)
a[i] = a[(a[i] + 3) % a.length];

(a)	0
(b)	1
(c)	2
(d)	3

44.

Choose all the lines which if inserted independently instead of "//insert code here" will allow the following code to compile:

public class Test{   
        public static void main(String args[]){
	        add(); 
		add(1);
		add(1, 2); 
	}

	// insert code here
}

(a)	void add(Integer... args){}
(b)	static void add(int... args, int y){}
(c)	static void add(int args...){}
(d)	static void add(int... args){}

Showing 41 to 44 out of 44 Questions