JAVA MCQ Questions with answers and solutions Page 21

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Chandrakant

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Q. Find the output of the following program.

Code:

public class Solution{
       public static void main(String[] args){
                     short x = 10;
                     x =  x * 5;
                     System.out.print(x);
       }
}

(A) 50
(B) 10
(C) Compile error
(D) Exception

💬 Discuss

✅ Correct Answer: (C) Compile error

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Chandrakant

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Q. Find the output of the following program.

Code:

public class Solution{
       public static void main(String[] args){
                     byte x = 127;
                     x++;
                     x++;
                     System.out.print(x);
       }
}

(A) -127
(B) 127
(C) 129
(D) 2

💬 Discuss

✅ Correct Answer: (A) -127

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Chandrakant

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Q. Select the valid statement.

(A) char[] ch = new char(5)
(B) char[] ch = new char[5]
(C) char[] ch = new char()
(D) char[] ch = new char[]

💬 Discuss

✅ Correct Answer: (B) char[] ch = new char[5]

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Chandrakant

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Q. Find the output of the following program

Code:

public class Solution{
       public static void main(String[] args){
               int[]  x = {120, 200, 016};
               for(int i = 0; i < x.length; i++){
                        System.out.print(x[i] + “ “);
               }                   
       }
}

(A) 120 200 016
(B) 120 200 14
(C) 120 200 16
(D) None

💬 Discuss

✅ Correct Answer: (B) 120 200 14

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Chandrakant

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Q. When an array is passed to a method, what does the method receive?

(A) The reference of the array
(B) A copy of the array
(C) Length of the array
(D) Copy of first element

💬 Discuss

✅ Correct Answer: (A) The reference of the array

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Chandrakant

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Q. Select the valid statement to declare and initialize an array.

(A) Int[] A = {}
(B) Int[] A = {1,2,3}
(C) Int[] A = (1,2,3)
(D) Int[][] A = {1,2,3}

💬 Discuss

✅ Correct Answer: (B) Int[] A = {1,2,3}

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Chandrakant

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Q. Find the value of A[1] after execution of the following program.

Code:

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

💬 Discuss

✅ Correct Answer: (B) 1

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Chandrakant

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Q. Arrays in java are

(A) Object references
(B) Objects
(C) Primitive data type
(D) None

💬 Discuss

✅ Correct Answer: (B) Objects

Explanation: Arrays are objects in java. It is a container that holds a fixed number of items of a single type.

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Chandrakant

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Q. When is the object created with new keyword?

(A) At run time
(B) At compile time
(C) Depends on the code
(D) None

💬 Discuss

✅ Correct Answer: (A) At run time

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Chandrakant

🎓 Tutor III ⭐ 6.73K Points

📊 JAVA

Q. Identify the corrected definition of a package.

(A) A package is a collection of editing tools
(B) A package is a collection of classes
(C) A package is a collection of classes and interfaces
(D) A package is a collection of interfaces

💬 Discuss

✅ Correct Answer: (C) A package is a collection of classes and interfaces

JAVA MCQs with answers Page - 21

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