有人可以帮我理解如何使用getConstructor创建内部类的实例.
这就是我现在所处的位置.
import java.lang.reflect.*;
public class Outer{
public Outer(int i){
//things to do
}
public class Inner{
Class<?>[] type = new Class<?>[1];
Class<?> myClass;
public Inner(int i){
//stuff and code
}
public void task(){
type[0] = Integer.class;
try{
myClass = Class.forName("Outer$Inner");
Constructor construct = myClass.getConstructor(type);
Object i = construct.newInstance(new Integer(43));
}
catch(Exception e){
e.printStackTrace();
}
}
}
public static void main(String[] args){
Outer outer = new Outer(new Integer(21));
Inner inner = outer.new Inner(new Integer(22));
inner.task();
}
Run Code Online (Sandbox Code Playgroud)
}
错误信息 …