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虽然学习Java的泛型参数化,我想出了这个代码:调用参数化方法
public interface Comparable<T> {
public int compareTo(T o);
}
public static <T extends Comparable<T>> int countGreaterThan(T[] anArray, T elem) {
int count = 0;
for (T e : anArray)
if (e.compareTo(elem) > 0)
++count;
return count;
}
我想测试它,所以我写了这个:
Integer[] iArray = new Integer[10];
for (int i=0; i<10; i++){
iArray[i] = new Integer(i);
}
int a = countGreaterThan(iArray, Integer.valueOf(5));
但是编译器是给我的错误调用方法countGreaterThan
当最后一行信息:
The method countGreaterThan(T[], T) in the type Main is not applicable for the arguments (Integer[], Integer)
我失去了一些东西明显?
噢,真的... 这是愚蠢的例子,我发现... 谢谢! – ajuric