- Hackerrank
- https://www.hackerrank.com/challenges/java-loops/problem
- https://www.hackerrank.com/challenges/java-end-of-file/problem
- https://www.hackerrank.com/challenges/java-int-to-string/problem
- https://www.hackerrank.com/challenges/java-substring/problem
- https://www.hackerrank.com/challenges/java-string-reverse/problem
- https://www.hackerrank.com/challenges/java-anagrams/problem
- https://www.hackerrank.com/challenges/30-class-vs-instance/problem
- https://www.hackerrank.com/challenges/java-output-formatting/problem Helper resource