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abstract class Shape { public int x = 100, y = 100; public abstract int getArea(); } class Rectangle extends Shape { @Override public int getArea() { return x * y; } }
参考文献： Java Quick Syntax Reference by Mikael Olsson
Java 语法 索引 ----- 抽象类(Abstract),布布扣,bubuko.com
Java 语法 索引 ----- 抽象类(Abstract)
标签：style blog color java ar div log ad
原文地址：http://www.cnblogs.com/timba/p/3900459.html
