内部类：返回一个实现了Comparable接口的类的对象

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public class InnerClass {       //返回一个实现了Comparable接口的类的对象     public  Comparable getComparable(){           //创建一个实现了Comparable接口的类：局部内部类         class MyComparable implements Comparable{               @Override             public int compareTo(Object o) {                 return 0;             }         }         return new MyComparable();     } }