产品详情
说明： 例子可以看到，类square、类circle及类triangle都是抽象类shape派生来的，他们都实现了getarea和getperimeter抽象方法。
(Examples can be seen, like square, circle and classes are abstract classes triangle shape derived class to, they have achieved getarea and getperimeter abstract methods.)
(Examples can be seen, like square, circle and classes are abstract classes triangle shape derived class to, they have achieved getarea and getperimeter abstract methods.)
文件列表：
抽象类应用
..........\.classpath,301,2011-09-25
..........\.project,386,2011-09-25
..........\bin
..........\...\c5_17.class,1367,2011-09-25
..........\...\circle.class,547,2011-09-25
..........\...\java.policy.applet,141,2011-09-25
..........\...\shapes.class,481,2011-09-25
..........\...\square.class,503,2011-09-25
..........\...\triangle.class,626,2011-09-25
..........\src
..........\...\c5_17.java,1678,2011-09-25
..........\.classpath,301,2011-09-25
..........\.project,386,2011-09-25
..........\bin
..........\...\c5_17.class,1367,2011-09-25
..........\...\circle.class,547,2011-09-25
..........\...\java.policy.applet,141,2011-09-25
..........\...\shapes.class,481,2011-09-25
..........\...\square.class,503,2011-09-25
..........\...\triangle.class,626,2011-09-25
..........\src
..........\...\c5_17.java,1678,2011-09-25
