Worked Example: While Loops

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Section 5.1 Worked Example: While Loops - Counter

Subgoals for Evaluating a Loop.

Diagram which statements go together.
Define and initialize variables
1. Determine the start condition.
2. Determine the update condition.
3. Determine the termination condition.
4. Determine body that is repeated.
Trace the loop.
1. For every iteration of the loop, write down the values.

You can watch this video or read through the content below it.

Problem: Given the following code, what is the output?

int counter = 0;
int total = 0;

while (counter < 50)
{
    if (counter % 5 == 0)
            total += counter;
    counter++;
 }

 System.out.println(total);