Java For Loop Intermediate-Level MCQs

Java For Loops are essential for handling iterations efficiently.This intermediate-level set will help you bridge the gap between basic and advanced concepts. Practicing Java For Loop Intermediate-Level MCQs can improve your understanding and coding skills.

Don’t forget to check out our other sets for different difficulty levels:

Java For Loop Beginner-Level MCQs [Click here]
Java For Loop Advanced-Level MCQs [Click here]

For more intermediate Java topics, you can also explore additional resources on Java official documentation.

For Loop MCQ Questions (Medium)

Ready to test your knowledge? Let’s dive into some multiple-choice questions to reinforce your understanding of intermediate Java For Loops.

Question 1:

What will be the output of the following code?

for (int i = 1; i <= 5; i++) {
    System.out.print(i * i + " ");
}

A 2 4 6 8 10

B 1 2 3 4 5

C 1 4 9 16 25

View Answer

Correct Answer: C

The loop prints the square of each number from 1 to 5, which results in: 1 4 9 16 25.

Question 2:

Which code snippet will print the numbers 5 10 15 20?

for (int i = 1; i <= 4; i++) {
    System.out.print(i * 5 + " ");
}

for (int i = 5; i <= 20; i += 5) {
    System.out.print(i + " ");
}

for (int i = 1; i <= 4; i++) {
    System.out.print(i * 4 + " ");
}

View Answer

Correct Answer: B

Option 2 iterates from 5 to 20 in steps of 5, producing the correct sequence: 5 10 15 20.

Question 3:

What is the output of this code?

for (int i = 1; i <= 4; i++) {
    for (int j = 1; j <= 2; j++) {
        System.out.print(i * j + " ");
    }
}

A 2 4 6 8 10

B 1 2 2 4 3 6 4 8

C 1 2 3 4 5 6 7 8

View Answer

Correct Answer: B

The nested loop multiplies i and j, producing the sequence: 1 2 2 4 3 6 4 8.

Question 4:

Which code snippet produces the same result?

for (int i = 1; i <= 3; i++) {
    System.out.print(i + " ");
}

for (int i = 1; i <= 3; i++) {
    System.out.print(i * 1 + " ");
}

for (int i = 1; i <= 3; i++) {
    System.out.print(i * 2 + " ");
}

for (int i = 0; i < 3; i++) {
    System.out.print(i + 1 + " ");
}

View Answer

Correct Answer: C

Option 3 produces the same output by iterating from 0 to 2 and adding 1 to each iteration value.

Question 5:

What will be the output of this code?

for (int i = 10; i > 0; i -= 2) {
    System.out.print(i + " ");
}

A 10 9 8 7 6

B 2 4 6 8 10

C 10 8 6 4 2

View Answer

Correct Answer: C

The loop iterates with a decrement of 2, printing the sequence: 10 8 6 4 2.

Question 6:

Which code will output '1 2 4 8 16'?

for (int i = 1; i <= 5; i++) {
    System.out.print(Math.pow(2, i-1) + " ");
}

for (int i = 1; i <= 5; i++) {
    System.out.print(i * 2 + " ");
}

for (int i = 1; i <= 5; i++) {
    System.out.print(i + " ");
}

View Answer

Correct Answer: A

Option 1 uses `Math.pow` to print the powers of 2: 1 2 4 8 16.

Question 7:

What will this code output?

for (int i = 1; i <= 3; i++) {
    for (int j = 1; j <= 3; j++) {
        System.out.print(i * j + " ");
    }
}

A 1 4 7 10

B 1 2 3 2 4 6 3 6 9

C 1 3 5 7 9 11

View Answer

Correct Answer: B

The nested loop multiplies i and j, producing: 1 2 3 2 4 6 3 6 9.

Question 8:

Which loop will print 'A B C D E'?

for (int i = 1; i <= 5; i++) {
    System.out.print((char)(i + 64) + " ");
}

for (char c = 'A'; c <= 'D'; c++) {
    System.out.print(c + " ");
}

for (char c = 'A'; c <= 'E'; c++) {
    System.out.print(c + " ");
}

View Answer

Correct Answer: C

Option 1 correctly loops from 'A' to 'E' and prints each letter: A B C D E.

Question 9:

What will be the output of this loop?

for (int i = 1; i <= 5; i++) {
    System.out.print(i + " ");
    if (i == 3) break;
}

A 1 2 3

B 1 2 3 4 5

C 3 2 1

View Answer

Correct Answer: A

The loop breaks after printing '3', so the output is: 1 2 3.

Question 10:

Which code snippet will print '5 10 15 20'?

for (int i = 1; i <= 20; i++) {
    if (i % 5 == 0) System.out.print(i + " ");
}

for (int i = 5; i <= 20; i += 5) {
    System.out.print(i + " ");
}

for (int i = 1; i <= 4; i++) {
    System.out.print(i * 5 + " ");
}

View Answer

Correct Answer: C

Option 2 loops from 1 to 4 and prints multiples of 5, resulting in: 5 10 15 20.

Question 11:

What will be the output of this code?

for (int i = 1; i <= 5; i++) {
    System.out.print(i + " ");
    if (i == 3) continue;
}

A 1 2 3 4 5

B 1 2 4 5

C 1 2 3

View Answer

Correct Answer: B

The `continue` statement skips the 3rd iteration, printing: 1 2 4 5.

Question 12:

Which code will print '1 1 2 4 8'?

for (int i = 1; i <= 5; i++) {
    System.out.print(i * 2 + " ");
}

for (int i = 0; i < 5; i++) {
    System.out.print((i + 1) + " ");
}

for (int i = 0; i < 5; i++) {
    System.out.print((int)Math.pow(2, i) + " ");
}

View Answer

Correct Answer: C

Option 1 prints the powers of 2: 1 2 4 8.

Question 13:

What will be the output of this loop?

for (int i = 5; i > 0; i--) {
    System.out.print(i + " ");
}

A 5 4 3 2 1

B 5 4 3

C 1 2 3 4 5

View Answer

Correct Answer: A

The loop runs backwards, printing: 5 4 3 2 1.

Question 14:

Which code will output '1 2 3 4 5'?

for (int i = 5; i > 0; i--) {
    System.out.print(i + " ");
}

for (int i = 1; i <= 5; i++) {
    System.out.print(i + " ");
}

for (int i = 0; i < 5; i++) {
    System.out.print(i + 1 + " ");
}

View Answer

Correct Answer: B

Both option 1 and 2 will print the numbers: 1 2 3 4 5.

Question 15:

Which code will produce '2 4 6 8 10'?

for (int i = 1; i <= 5; i++) {
    System.out.print(i * 2 + " ");
}

for (int i = 2; i <= 10; i += 2) {
    System.out.print(i + " ");
}

for (int i = 1; i <= 10; i++) {
    if (i % 2 == 0) System.out.print(i + " ");
}

View Answer

Correct Answer: B

Option 1 correctly iterates from 2 to 10 in steps of 2, printing the even numbers.

Question 16:

What will be the output of this code?

for (int i = 1; i <= 5; i++) {
    System.out.print(i + " ");
    if (i == 3) break;
}

A 3 2 1

B 1 2 3 4 5

C 1 2 3

View Answer

Correct Answer: C

The loop breaks at the 3rd iteration, so the output is: 1 2 3.

Question 17:

What is the output of the following code?

for (int i = 1; i <= 5; i++) {
    System.out.print(i * i + " ");
}

A 2 4 6 8 10

B 1 2 3 4 5

C 1 4 9 16 25

View Answer

Correct Answer: C

The loop prints the square of each number from 1 to 5: 1 4 9 16 25.

Question 18:

Which code will print '1 3 5 7 9'?

for (int i = 1; i <= 5; i++) {
    System.out.print(i * 2 - 1 + " ");
}

for (int i = 1; i <= 5; i++) {
    System.out.print(i + " ");
}

for (int i = 1; i <= 9; i++) {
    if (i % 2 != 0) System.out.print(i + " ");
}

View Answer

Correct Answer: A

Option 1 correctly calculates the odd numbers between 1 and 9: 1 3 5 7 9.

Question 19:

What will be the output of this code?

for (int i = 2; i <= 6; i += 2) {
    for (int j = 1; j <= 3; j++) {
        System.out.print(i * j + " ");
    }
}

A 2 4 6 4 8 12 6 12 18

B 2 4 6 8 10

C 3 6 9 12

View Answer

Correct Answer: A

The nested loop multiplies i and j, producing: 2 4 6 4 8 12 6 12 18.

Question 20:

Which loop will print '1 2 3 4 5 6 7 8 9 10'?

for (int i = 1; i <= 10; i++) {
    System.out.print(i + " ");
}

for (int i = 1; i <= 9; i++) {
    System.out.print(i + " ");
}

for (int i = 0; i < 10; i++) {
    System.out.print(i + 1 + " ");
}

View Answer

Correct Answer: A

Option 1 will correctly print the numbers from 1 to 10.

For Loop MCQ Questions (Medium)

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