you shuold look at it,i think it is very useful

Example2_2.java
chapter2\例子9\Weekday.java
........\.....\Example2_9.java
........\....8\Example2_8.java
........\....7\Example2_7.java
........\....6\Example2_6.java
........\.....\Example2_6.class
........\....5\Example2_5.java
........\....4\Example2_4.java
........\....3\Example2_3.java
........\....2\Example2_2.java
........\.....\Example2_2.rar
........\....1\Example2_1.java
........\例子9
........\例子8
........\例子7
........\例子6
........\例子5
........\例子4
........\例子3
........\例子2
........\例子1
chapter2
.......4\4.4.4 有理数的类封装代码\MainClass.java
........\........................\Rational.java
........\例子20\Employee.java
........\....19\Example4_19.java
........\.....8\Example4_18.java
........\.....7\Student.java
........\......\Example4_17.java
........\.....6\AAA.java
........\.....5\A.java
........\......\Example4_15.java
........\.....4\Example4_14.java
........\.....3\tom\jiafei\Triangle.class
........\......\...\......\Triangle.java
........\.....2\Example4_12.java
........\.....1\tom\jiafei\Example4_11.java
........\......\...\......\Student.java
........\.....0\People.java
........\....9\Example4_9.java
........\....8\Example4_8.java
........\.....\Lader.java
........\....7\Geometry.java
........\.....\Rectangle.java
........\.....\Circle.java
........\.....\Example4_7.java
........\....6\Computer.java
........\.....\Example4_6.java
........\....5\Circle.java
........\.....\Circular.java
........\.....\Example4_5.java
........\....4\Example4_4.java
........\.....\Rect.java
........\....3\Example4_3.java
........\.....\PersonName.java
........\.....\XiyoujiRenwu.java
........\....2\Example4_2.java
........\....1\Example4_1.java
........\.....3\tom\jiafei
........\.....1\tom\jiafei
........\.....3\tom
........\.....1\tom
........\4.4.4 有理数的类封装代码
........\例子20
........\例子19
........\例子18
........\例子17
........\例子16
........\例子15
........\例子14
........\例子13
........\例子12
........\例子11
........\例子10
........\例子9
........\例子8
........\例子7
........\例子6
........\例子5
........\例子4
........\例子3
........\例子2
........\例子1
chapter4
.......6\例子8\Circle.java
........\.....\Example6_8.java
........\....7\Rect.java
........\.....\Example6_7.java
........\....6\Example6_6.java
........\....5\Example6_5.java
........\....4\Example6_4.java
........\....3\Example6_3.java
........\....2\Example6_2.java
........\....1\Example6_1.java
........\.....\China.java
........\例子8
........\例子7
........\例子6
........\例子5

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