Propertiesコレクション_Listメソッドとstoreメソッド

import java.util.Properties;



public class PropertiesDemo {

    public static void main(String[] args) {

        propertiesDemo();

    }



    public static void propertiesDemo() {

        Properties prop = new Properties();

        prop.setProperty("02", "huangjianfeng");

        prop.setProperty("03", "jianfeng");

        prop.setProperty("04", "feng");

        

        prop.list(System.out);// ， 

    }

}

import java.io.FileOutputStream;

import java.io.IOException;

import java.util.Properties;



public class PropertiesDemo {

    public static void main(String[] args) throws IOException {

        propertiesDemo();

    }



    public static void propertiesDemo() throws IOException {

        Properties prop = new Properties();

        prop.setProperty("02", "hujianfeng");

        prop.setProperty("03", "jianfeng");

        prop.setProperty("04", "feng");

        

        // ， 

        FileOutputStream fos = new FileOutputStream("F:\\info.txt");

        

        // ， store 

        prop.store(fos, "number+name");// ， 

        fos.close(); 

    }

    

}