java_4_反射入门

package com.reflect;

public class Student {
    
    public String name;
    public int age;
    public String classNo;
    public String shcool;
    
    public void toSchool(){
        System.out.println("我是"+name+",我要去"+shcool+"上学！");
    }
    
    public String toString() {
        return "Student [name=" + name + ", age=" + age + "]";
    }  
    
}

package com.reflect;

public class JavaA {
    private String name;
    private int age;
    private String sex;
    
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getSex() {
        return sex;
    }
    public void setSex(String sex) {
        this.sex = sex;
    }
    
    
}

package com.reflect;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

public class Test {
    public static void main(String[] args) throws Exception {
        
        //先把Student类的内容，解析封装成Class类
        Class c=Class.forName("com.reflect.Test");

        Package p=c.getPackage();
        System.out.println("包名："+p.getName());
        
        String className=c.getName();
        System.out.println("类名："+className);
        
        //获取类的所有字段，并打印字段的名字

        System.out.println("字段名：");
        Field[] fields=c.getDeclaredFields();
        for(int i=0;i<fields.length;i++ ){
            System.out.println(fields[i].getName());
        }
        

        System.out.println("方法名：");
        Method[] methods=c.getDeclaredMethods();
        for(int i=0;i<methods.length;i++){
            System.out.println(methods[i].getName());
        }
        
        
    }
}