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Java Control Statements and Loops

Here are 10 essential multiple-choice questions on Java Control Statements and Loops, covering key concepts.

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Question 1

What will be the output of the following code?

Java

int x = 5;
if (x > 2)
    if (x > 4)
        System.out.println("A");
    else
        System.out.println("B");

A
B
Compilation Error
No Output

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Question 2

Which of the following is NOT a valid control statement in Java?

if
do-while
goto
switch

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Question 3

What will be the output of the following loop?

Java

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

0 1 2
1 2 3
0 1 2 3
Infinite Loop

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Question 4

How many times will the following loop execute?

Java

int i = 1;
while (i <= 5) {
    System.out.println("Hello");
}

5 times
6 times
Infinite times
Compilation Error

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Question 5

What is the output of the following Java code?

Java

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

0 1 2 3 4
0 1
0 1 2
No Output

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Question 6

What will be the output of this code?

Java

for (int i = 0; i < 5; i++) {
    if (i == 3)
        continue;
    System.out.print(i + " ");
}

0 1 2 3 4
0 1 2 4
0 1 2
Compilation Error

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Question 7

What will happen if the condition in a for loop is omitted?

Java

for (int i = 0; ; i++) {
    System.out.println(i);
}

The loop executes indefinitely
Compilation Error
Runs once and terminates
Throws an exception

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Question 8

What is the correct syntax for a do-while loop in Java?

do { } while (condition);
while (condition) { }
do (condition) { }
while { condition };

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Question 9

What will be the output of the following nested loop?

Java

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

1,1 1,2 2,1 2,2 3,1 3,2
1,1 2,1 3,1 1,2 2,2 3,2
1,1 1,2 1,3 2,1 2,2 2,3
Compilation Error

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Question 10

What will be the output of the following while loop?

Java

int x = 10;
while (x > 0) {
    x -= 3;
    System.out.print(x + " ");
}

7 4 1 -2
10 7 4 1
10 7 4 1 -2 -5
Infinite loop

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