CODEWITHSUNDEEP
javaloops
TheRuke
TheRuke

Reputation: 3

loop to print out the even numbers from 2 to 100 in reverse order

How would I do this? Sorry my first time posting here.

int controller = 100;
    while(controller <= 2)
    {
        System.out.println("Step 2");
        controller++;
    }
    System.out.println("Done");

Upvotes: 0

Views: 2961

Answers (2)

micarelli
micarelli

Reputation: 1

You can use a -2 decrement as already answered or a 'modulo 2' way.

for (int controller = 100; controller >= 2; controller --) {
   if (controller % 2 == 0)
      System.out.println(controller + " is even");
}

Upvotes: 0

Elliott Frisch
Elliott Frisch

Reputation: 201447

Your code is almost correct. You should reduce the index by 2 (not increment by 1), and you should check that the value is >= 2 (not <= 2). Also, I believe you wanted to print controller. Like

int controller = 100;
while(controller >= 2)
{
    System.out.println(controller);
    controller -= 2;
}
System.out.println("Done");

or like

for (int controller = 100; controller >= 2; controller -= 2) {
    System.out.println(controller);
}
System.out.println("Done");

Upvotes: 2

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