What is the output of the following code snippet?

for(int i = 1; i <= 3; i++) {

System.out.print(i + " ");

}

What will be the output of the following Java code snippet:

int sum = 0;

for(int i = 1; i <= 5; i++) {

sum += i;

}

System.out.print(sum);

What will be the output of the following Java code?

int i = 1;

while (i < 5) {

System.out.print(i * i + " ");

i++;

}

What will the following Java code output?

int num = 10;

while (num >= 0) {

System.out.print(num + " ");

num -= 2;

}

What will happen if the following Java code is executed?

int i = 0;

while (i < 3) {

System.out.println(i);

}