/*
HashMap默认初始化值是16，默认加载因子是0.75
Hashtable默认初始化值是11，默认加载因子是0.75
java.util.properties也是由value和Key组成，但他们都是字符串
*/
import java.util.Properties;
class fuck14{
public static void main(String[] args){
//1.创建属性类对象
Properties p=new Properties();
//2.存取元素
//注意Key值不嫩重复，否则会被覆盖
p.setProperty("username","scott");
p.setProperty("password","123456");
p.setProperty("username","scoti");
//3.取,通过Key取value
String v1=p.getProperty("username");
String v2=p.getProperty("password");
System.out.println(v1);
System.out.println(v2);
}
}
HashMap默认初始化值是16，默认加载因子是0.75
Hashtable默认初始化值是11，默认加载因子是0.75
java.util.properties也是由value和Key组成，但他们都是字符串
*/
import java.util.Properties;
class fuck14{
public static void main(String[] args){
//1.创建属性类对象
Properties p=new Properties();
//2.存取元素
//注意Key值不嫩重复，否则会被覆盖
p.setProperty("username","scott");
p.setProperty("password","123456");
p.setProperty("username","scoti");
//3.取,通过Key取value
String v1=p.getProperty("username");
String v2=p.getProperty("password");
System.out.println(v1);
System.out.println(v2);
}
}