Description: A class implements all the methods are fully supports instantiation. But like the author believes that the main purpose of writing this class is to be inherited, the class is an abstract concept, do not advocate to create an instance of it, so its use abstract do a modification to prevent the class is instantiated.
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20131208-JAVA1310\JAVA语言基础-3.doc
.................\DemoPrj-20131208\.project
.................\................\.classpath
.................\................\bin\net\dfrz\objectdemo\Student.class
.................\................\...\...\....\..........\Tester.class
.................\................\...\...\....\..........\Apple.class
.................\................\...\...\....\..........\AppleTester.class
.................\................\...\...\....\abstractclass\Tester.class
.................\................\...\...\....\.............\B.class
.................\................\...\...\....\.............\Animal.class
.................\................\...\...\....\.............\Abs.class
.................\................\...\...\....\.............\Test.class
.................\................\...\...\....\.............\Base.class
.................\................\...\...\....\.............\A.class
.................\................\...\...\....\datedemo\Tester.class
.................\................\src\net\dfrz\objectdemo\Student.java
.................\................\...\...\....\..........\Tester.java
.................\................\...\...\....\..........\Apple.java
.................\................\...\...\....\..........\AppleTester.java
.................\................\...\...\....\datedemo\Tester.java
.................\................\...\...\....\abstractclass\A.java
.................\................\...\...\....\.............\Tester.java
.................\................\...\...\....\.............\B.java
.................\................\...\...\....\.............\Animal.java
.................\................\...\...\....\.............\Abs.java
.................\JAVA SE作业一.doc
.................\DemoPrj-20131208\bin\net\dfrz\objectdemo
.................\................\...\...\....\abstractclass
.................\................\...\...\....\datedemo
.................\................\src\net\dfrz\objectdemo
.................\................\...\...\....\datedemo
.................\................\...\...\....\abstractclass
.................\................\bin\net\dfrz
.................\................\src\net\dfrz
.................\................\bin\net
.................\................\src\net
.................\................\bin
.................\................\src
.................\DemoPrj-20131208
20131208-JAVA1310
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