Hashtable

package com.atguigu.java;
import java.io.FileInputStream;
import java.util.Properties;
/**
 * @author Dxkstart
 * @create 2021-05-23 18:59
 */
public class PropertiesTest {
    //Properties:常用来处理配置文件。key和value都是String类型
    public static void main(String[] args) throws Exception {
        Properties prop = new Properties();
        FileInputStream fil = new FileInputStream("jdbc.properties");
        prop.load(fil);//加载流对应文件
        String name = prop.getProperty("name");
        String password = prop.getProperty("password");
        System.out.println(name + password);
    }
}

name=Tom
password=abc123