atlednolispe's initiation of algorithm.

website of algs4

IDEA:

1. right click [src] -> Mark Directory as Sources Root
2. File -> Project Structure -> Project language level:(JDK-version)
3. Project compiler output: .../AlgorithmsForthEdition/out
4. Dependencies -> add src/algs4/*.jar

CLASSPATH: default to ".", if is set, need to add . to the CLASSPATH or move *.class to CLASSPATH, or can't find *.class in the current working directory.