Class.getmethod如何获取到参数带有class<?>的方法?

Question

相关代码：
public class ReflectDemo {
private void t00(Class<?> unknown,String str)
{
System.out.println("t0");
}
}
public void test01()
{
Class<?> unknown= null;
try {
Method method= ReflectDemo.class.getDeclaredMethod("t00",unknown,String.class);
method.setAccessible(true);
method.invoke(new ReflectDemo(),"a","b");
} catch (Exception e) {
e.printStackTrace();
}
}
报错信息：java.lang.NoSuchMethodException: Demo.ReflectDemo.t00(null, java.lang.String)

Answer 1

public class ReflectDemo {
private void t00(Class<?> unknown,String str)
{
System.out.println("t0");
}
}
class Test{

public static void main(String[] args) {
    test01();
    test01();
}

public static void test01() {
    try {
        Class<?> unknown = String.class;
        Class <ReflectDemo> demoClass = ReflectDemo.class;
        Method method= demoClass.getDeclaredMethod("t00", unknown.getClass(), String.class);
        method.setAccessible(true);
        method.invoke(new ReflectDemo(),String.class, "b");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

public static void test02() {
    try {
        Class<?> unknown = Object.class;
        Class <ReflectDemo> demoClass = ReflectDemo.class;
        Method method= demoClass.getDeclaredMethod("t00", unknown.getClass(), String.class);
        method.setAccessible(true);
        method.invoke(new ReflectDemo(),Object.class, "b");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

}

Method method= demoClass.getDeclaredMethod("t00", unknown.getClass(), String.class);

可以的话自己debug一下吧