Mastering Java Loops

What is the output of the following code: for(int i=0; i<5; i++){ System.out.print(i); }?

• 56789

• 01234

• 0123

• 12345

How do you declare a while loop in Java?

• repeat (condition) { // code to execute }

• for (condition) { // code to execute }

• do while (condition) { // code to execute }

• while (condition) { // code to execute }

Write a while loop that prints numbers from 1 to 10.

• i = 1 while i < 10: print(i) i += 1

• i = 1 while i <= 10: print(i) i += 1

• i = 0 while i < 10: print(i) i += 1

• for i in range(1, 11): print(i)

What is the purpose of the 'break' statement in loops?

• To exit a loop prematurely.

• To continue to the next iteration of a loop.

• To skip the current iteration of a loop.

• To pause the execution of a loop temporarily.

Explain the difference between a for loop and a while loop.

• For loop: fixed iterations; While loop: condition-based iterations.

• For loop: condition-based iterations; While loop: fixed iterations.

• For loop: used for recursion; While loop: used for iteration.

• For loop: executes once; While loop: executes indefinitely.

What will be the output of the following code: for(int i=0; i<3; i++){ for(int j=0; j<2; j++){ System.out.print(i+j); }}?

• 011223

• 123

• 01223

• 0111223

How can you control the execution of a loop using a condition?

• Use a conditional statement to check a condition before each loop iteration.

• Ignore the condition and run the loop indefinitely.

• Use a loop without any conditions.

• Always execute the loop a fixed number of times.

Write a nested loop that prints a multiplication table from 1 to 5.

• for i in range(1, 6): for j in range(1, 6): print(i * j, end=' ') print()

• for i in range(1, 6): for j in range(1, 6): print(i - j)

• for i in range(1, 10): for j in range(1, 10): print(i + j)

• for i in range(1, 6): print(i * 1)

What is the output of the following code: int count = 0; while(count < 3){ System.out.println(count); count++; }?

• 0 1 2

• 3

• -1

• 4

How do you use the 'continue' statement in a loop?

• 'Continue' is used to restart the loop from the beginning.

• Use 'continue' to exit the loop entirely.

• 'Continue' pauses the loop for a specified time.

• Use 'continue' in a loop to skip the current iteration and proceed to the next one.