內反射模擬java的instanceof函數

package hncu.reflect.simulate;


public class SimulateInstanceof {
public static void main(String[] args) throws Exception {
String name=new String("hncu.reflect.simulate.B");//名字必須是類全名
Class c=Class.forName(name);//由名字獲得getClass
boolean b1=c.isInstance(new A());//用c.isInstance判斷c是否是A類
System.out.println(b1);

B obj1=new B();
B obj2=new B();
System.out.println(c.isInstance(new A()));
System.out.println(c.isInstance(new B()));

}

}

package hncu.reflect.simulate;
public class A {
int i=0;

}

package hncu.reflect.simulate;
public class B {
int i=0;
}