package Zjshuchu;

import java.util.Properties;

import java.util.Set;

public class Demo03 {

    public static void main(String[] args) {

        Properties pro=new Properties();

        //设置添加值setProperty

        pro.setProperty("a", "1");

        pro.setProperty("b", "2");

        pro.setProperty("c", "3");

        pro.setProperty("d", "4");

        //取值getProperty

        String a=pro.getProperty("a");

        System.out.println(a);

        //遍历取值,先建立一个泛型

        Set<String> set=pro.stringPropertyNames();

        for(String s:set){

            String key=s;

            String value=pro.getProperty(s);

            System.out.println(key+"..."+value);

        }

    }

}