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

Katrina Owen 5671e6bf86 Generate the exercise READMEs from the new templates		9 лет назад
..
.meta	Add exercise README templates	9 лет назад
src	remove final from class declaration in acronym exercise	9 лет назад
README.md	Generate the exercise READMEs from the new templates	9 лет назад
build.gradle	Format build.gradle files	9 лет назад

Acronym

Convert a phrase to its acronym.

Techies love their TLA (Three Letter Acronyms)!

Help generate some jargon by writing a program that converts a long name like Portable Network Graphics to its acronym (PNG).

To run the tests:

$ gradle test

For more detailed info about the Java track see the help page.

Source

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