标签:java
/**11
* 編寫一個求平均值的接口與實現該接口的類
**/
public class Test{ public static void main(String[] args){ } } interface Average { double DoubleNumber(double a, double b); } class AverageDouble implements Average{ private double a, b; public double DoubleNumber(double a, double b){ this.a = a; this.b = b; return ((a * b) / 2); } }
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标签:java
原文地址:http://anglecode.blog.51cto.com/5628271/1619895