Flow Control -Java Programming MCQ Questions and Answers

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What is the output of the following code snippet?

int j = 0;
while (j < 5) {
    System.out.print(j + " ");
    j += 2;
}

A) 5 4 3 2 1 B) 2 4 6 8 10 C) 0 2 4 D) 0 1 2 3 4

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In Java, what does the "break" statement do in a loop?

A) Repeats the loop B) Restarts the loop C) Pauses the loop D) Exits the loop prematurely

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the "for-each" loop in Java?

A) Iterates through elements of an array or collection B) Performs mathematical calculations C) Declares variables D) Defines methods

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Answer & Solution

Answer: Option A

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In Java, what does the "default" keyword refer to in a "switch" statement?

A) The default loop condition B) A reserved keyword with no specific meaning C) The default value of a variable D) The default case to execute when no other case matches

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Answer & Solution

Answer: Option D

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What is the result of the following code snippet?

int k = 10;
do {
    System.out.print(k + " ");
    k -= 2;
} while (k > 0);

A) 10 8 6 4 B) 2 4 6 8 10 C) 10 8 6 4 2 D) 1 3 5 7 9

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In Java, which loop is used when you want to execute a block of code as long as a condition is true?

A) for loop B) while loop C) switch loop D) do-while loop

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Answer & Solution

Answer: Option B

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What is the output of the following code snippet?

for (int m = 0; m < 5; m++) {
    if (m == 2) {
        continue;
    }
    System.out.print(m + " ");
}

A) 0 2 4 B) 2 4 C) 0 1 3 4 D) 0 1 2 3 4

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In Java, what does the "switch" statement evaluate to determine which case to execute?

A) A boolean expression B) A string value C) A floating-point number D) An expression of integral or enumerated type

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Answer & Solution

Answer: Option D

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What is the purpose of the "if-else" statement in Java?

A) To execute one block of code if a condition is true and another block if it's false B) To declare variables C) To create loops D) To define methods

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Answer & Solution

Answer: Option A

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Which of the following is a valid way to create an infinite loop in Java?

A) switch (1) { /* loop body */ } B) do { /* loop body */ } while (false); C) for (int i = 0; i < 5; i--) { /* loop body */ } D) while (true) { /* loop body */ }

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Answer & Solution

Answer: Option D

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