有必要更改静态方法以使其成为Generic

Question

public class Solution {
    public static void main(String[] args) {
        Number number = GenericStatic.<Number>someStaticMethod(new Integer(3));
    }
}

_

public class GenericStatic {
    public static Object someStaticMethod(Object genericObject) {
        System.out.println(genericObject);
        return genericObject;
    }
}

请帮忙，怎么做？这是一个练习，但我不能完成任务......（

Answer 1

不，你可以使你的静态方法通用：

public static <T> T someStaticMethod(T genericObject) {
    System.out.println(genericObject);
    return genericObject;
}