Java Control Statements

1.

What is the output of the following program?

public class Main {
public static void main(String[] args) {
int i = 5;
while(i < 10) {
System.out.print(i + " ");
i++;
}
}
}

5 6 7 8 9

6 7 8 9 10

5 6 7 8 9 10

None of the above

2.		Which of the following is not a valid relational operator in Java?

==

!=

<=

><

3.		What is the difference between a while loop and a do-while loop in Java?

A while loop runs at least once, while a do-while loop may not run at all.

A while loop always runs exactly once, while a do-while loop may run more than once.

A while loop tests its condition at the beginning of the loop, while a do-while loop tests its condition at the end of the loop.

A while loop is used for iterating over arrays, while a do-while loop is used for iterating over collections.

4.		Which of the following is true regarding the break statement in Java?

It terminates the current loop or switch statement.

It skips the remaining statements in the current iteration of the loop.

It jumps to a specific label in the code.

It creates a new loop or switch statement.

5.		Which control flow statement is used to jump to a specific label in the code?

continue

break

return

goto

6.		Which control flow statement is used to skip the remaining statements in the current iteration of a loop and move on to the next iteration?

continue

break

return

skip

7.		Which control flow statement is used to execute a set of statements at least once?

while loop

do-while loop

for loop

if statement

8.

What is the output of the following program?

public class Main {
public static void main(String[] args) {
int i = 0;
do {
System.out.print(i + " ");
i++;
} while(i < 5);
}
}

0 1 2 3 4

1 2 3 4 5

0 1 2 3 4 5

None of the above

9.		What is the purpose of the labeled statement in Java?

To define a new variable in the code.

To provide a descriptive name for a loop or if statement.

To mark a specific point in the code that can be jumped to using the goto statement.

To create a custom exception class.

10.		Which of the following statements is true about nested loops in Java?

Nested loops can only be used with for loops, not with while or do-while loops.

A break statement inside a nested loop terminates only the innermost loop.

A continue statement inside a nested loop skips only the innermost loop.

Nested loops are never used in real-world programming.