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Lesson 2.5 · Write it

Leap year check

A whole programPython or Java7 tests, 4 of them hidden

On a phone? Put the lines in order instead

Write a program that reads a year (a whole number, 1 or more) and checks whether it is a leap year.

  1. Always print Year: followed by the year on the first line.
  2. A year is a leap year if it is divisible by 4 (its remainder after dividing by 4 is 0).
  3. If it is a leap year, print Leap year on the next line. Otherwise, print Not a leap year.
  4. Spaces at the end of a line are ignored.

This is a simplified rule. The real rule also checks 100 and 400, but this exercise uses only 4.

Running Java here comes later. You can put this answer's lines in order instead. You can still write your Java answer (it stays while this page is open) and compare it with our worked solution. Or try this exercise in Python.

Examples

Your program is run 7 times: the 3 examples below, and 4 hidden ones that check the rules above. Only what it prints is checked.

  • divisible by 4: a leap year (rules 1 to 3)

    You type

    1. typed: 2024

    It prints

    Year: 2024
Leap year

  • not divisible by 4 (rules 1 and 3)

    You type

    1. typed: 2023

    It prints

    Year: 2023
Not a leap year

  • the smallest leap year above 0 (rule 2)

    You type

    1. typed: 4

    It prints

    Year: 4
Leap year
solution.pySolution.java