File list (Check if you may need any files):
Day02\AbsDemo.class
.....\Animal.class
.....\Array2Demo.class
.....\Array2Demo.java
.....\Array2Demo.java.bak
.....\ArrayDemo.class
.....\ArrayDemo.java
.....\ArrayDemo.java.bak
.....\ArrayDemo1.class
.....\ArrayDemo1.java
.....\ArrayDemo1.java.bak
.....\ArrayDemo2.class
.....\ArrayDemo2.java
.....\ArrayDemo2.java.bak
.....\ArrayDemo3.class
.....\ArrayDemo3.java
.....\ArrayDemo3.java.bak
.....\ArrayTest.class
.....\ArrayTest.java
.....\ArrayTest.java.bak
.....\ArrayTest2.class
.....\ArrayTest2.java
.....\ArrayTest2.java.bak
.....\ArrayTool.class
.....\ArrayTool.java
.....\ArrayTool.java.bak
.....\ArrayTool1Demo.class
.....\ArrayTool1Demo.java
.....\ArrayTool1Demo.java.bak
.....\ArrayToolDemo.class
.....\ArrayToolDemo.java
.....\ArrayToolDemo.java.bak
.....\Cat.class
.....\DBOperate.java
.....\Demo.class
.....\Dog.class
.....\DuoTaiDemo.class
.....\DuoTaiDemo.java
.....\DuoTaiDemo.java.bak
.....\DuoTaiDemo1.class
.....\DuoTaiDemo1.java
.....\DuoTaiDemo1.java.bak
.....\ForDemo.class
.....\ForDemo.java
.....\ForDemo.java.bak
.....\ForForDemo.class
.....\ForForDemo.java
.....\ForForDemo.java.bak
.....\ForForTest.class
.....\ForForTest.java
.....\ForForTest.java.bak
.....\ForForTest1.class
.....\ForForTest1.java
.....\ForForTest1.java.bak
.....\ForTest.java
.....\ForTest.java.bak
.....\ForTest1.class
.....\ForTest1.java
.....\ForTest1.java.bak
.....\ForTest2.class
.....\ForTest2.java
.....\ForTest2.java.bak
.....\FunctionDemo.class
.....\FunctionDemo.java
.....\FunctionDemo.java.bak
.....\FunctionDemo1.java
.....\FunctionDemo1.java.bak
.....\FunctionOverload.class
.....\FunctionOverload.java
.....\FunctionOverload.java.bak
.....\FunctionTest.class
.....\FunctionTest.java
.....\FunctionTest.java.bak
.....\InnerClassDemo.class
.....\InnerClassDemo.java
.....\InnerClassDemo.java.bak
.....\InnerClassDemo1.class
.....\InnerClassDemo1.java
.....\InnerClassDemo1.java.bak
.....\InnerClassDemo2.class
.....\InnerClassDemo2.java
.....\InnerClassDemo2.java.bak
.....\InnerClassTest.java
.....\InnerClassTest.java.bak
.....\MainBoard.class
.....\MainDemo.java
.....\MainDemo.java.bak
.....\myhelp\allclasses-frame.html
.....\......\allclasses-noframe.html
.....\......\ArrayTool.html
.....\......\constant-values.html
.....\......\deprecated-list.html
.....\......\help-doc.html
.....\......\index-all.html
.....\......\index.html
.....\......\overview-tree.html
.....\......\package-frame.html
.....\......\package-list
.....\......\package-summary.html
.....\......\package-tree.html