Write it, run it, read the output

This is a scratch drill — your code runs, nothing is graded or recorded. No test cases, no expected output, no verdict.

TASK

Create marks with the values 12, 7, 19, and 3. Print each index and value, then calculate and print the 16-byte element payload as marks.length * Integer.BYTES without including Java object overhead.

index 0: value 12
index 1: value 7
index 2: value 19
index 3: value 3
element payload bytes: 16