dumpmethods.java

来自「其中一个类的运行结果是： 该对象的类型是：class package2.Cus」· Java 代码 · 共 33 行

package package1;

import java.lang.reflect.*;
public class DumpMethods {
    public static void main(String[] args) {
        try {
            if (args.length < 1) {
                System.out.println("请输入完整的类名：");
                return;
            }
            Class strClass = Class.forName(args[0]);
            //检索带有指定参数的构造方法
            Class[] strArgsClass = new Class[]{byte[].class, String.class};
            Constructor constructor = strClass.getConstructor(strArgsClass);
            System.out.println("Constructor:" + constructor.toString());
         
            //调用带有参数的构造方法创建实例对象object
            byte[] bytes = "IT年薪".getBytes();
            Object[] strArgs = new Object[]{bytes, "GBK"};
            Object object = constructor.newInstance(strArgs);
            System.out.println("Object" + object.toString());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
//    Class c=Class.forName("DynTest");
//    Class[] ptype=new Class[]{double.class,int.class}；
//    Constructor ctor=c.getConstructor(ptypr);
//    Object[] obj=new Object[]{new Double(3.1415),new Integer(123)};
//    Object object=ctor.newInstance(obj);
//    System.out.println(object);
   }