Java - 如何检查一个类是否继承自某个类或接口(interface)？

Question

我需要检查:

public static boolean check(Class<?> c, Class<?> d)
{
    if (/* c inherits from d */)
        return true;
    else
        return false;
}

我该怎么做？

没有 c.newInstance() 有可能吗？

---

第一次看错标题了。现在是正确的。

Answer 1

使用isAssignableFrom

if(d.isAssignableFrom(c)){
    // then d is a superclass of c
    // in other words, c inherits d
}

Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter. It returns true if so; otherwise it returns false. If this Class object represents a primitive type, this method returns true if the specified Class parameter is exactly this Class object; otherwise it returns false.

Source