Map 的Properties集合存储IO流对象

package IODemo;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;


public class PropertiesDemo {
    public static void main(String[] args) throws Exception{
        method();

    }
    public static void method ()throws Exception{
        //创建字节输入流
        FileInputStream file = new FileInputStream("/Users/Desktop/IOPrctice/Properties.txt");
        //创建Properties类
        Properties  per = new Properties();
        //加载类中的键值对
        per.load(file);
        //关闭输入流
        file.close();
        System.out.println(per);
        //修改对应键的值
        per.setProperty("Name","zhangsan");
        //创建字节输入流
        FileOutputStream fos = new FileOutputStream("/Users/Desktop/IOPrctice/Properties.txt");
        //使用Properties 集合方法存储
        per.store(fos,"123");
        //关闭流
        fos.close();

    }

}