Quiz on Loops in Java

Which loop in Java is guaranteed to execute at least once?

What is the output of:

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

Which of the following is an enhanced for loop syntax?

How many times will this loop execute?

for (int i = 0; i < 5; i++) {
System.out.print(“*”);
}

Which loop is best when the number of iterations is unknown?

What will be the output?

int i = 5;
do {
System.out.print(i);
i–;
} while (i > 3);

What is an infinite loop in Java?

What will be the output of:

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

Which keyword is used to exit a loop prematurely?

What does the `continue` keyword do?

What is the output?

int i = 3;
while (i > 0) {
i–;
System.out.print(i);
}

Which of these loops is preferred for array traversal?

What is the output? 

What is the output?
int[] arr = {1, 2, 3};
for (int num : arr) {
System.out.print(num + ” “);
}

Can you nest one loop inside another in Java?

What is the condition of this infinite loop?

for(;;){
System.out.println(“Run”);
}