lots of exercises in java... from https://github.com/exercism/java

Harikrushna Vanpariya fae5d3df11 Version file updated for #1125		il y a 6 ans
..
.meta	Version file updated for #1125	il y a 6 ans
src	Restructure exercise directory	il y a 7 ans
README.md	Adjust exercise README formatting; drop help link	il y a 7 ans
build.gradle	Format build.gradle files	il y a 7 ans

Gigasecond

Calculate the moment when someone has lived for 10^9 seconds.

A gigasecond is 10^9 (1,000,000,000) seconds.

Running the tests

You can run all the tests for an exercise by entering

$ gradle test

in your terminal.

Chapter 9 in Chris Pine's online Learn to Program tutorial. http://pine.fm/LearnToProgram/?Chapter=09

It's possible to submit an incomplete solution so you can see how others have completed the exercise.