File list (Check if you may need any files):
集合类学习
..........\ArrayListTest01.java
..........\ArrayListTest02.java
..........\ArrayListTest03.java
..........\ArrayListTest04.java
..........\HashMapTest.java
..........\HashSetTest.java
..........\MyQueue.java
..........\MyStack.java
..........\PropTest.java
..........\TreeSetTest.java
..........\TrySimpleVector.java
..........\Vector
..........\......\Crowd.java
..........\......\FormattedInput.java
..........\......\Person.java
..........\......\TryVector.java
..........\dhc.ini