Java中枚举方法举例以及switch分析

public class EnumDemo
{

private enum Season
{
spring,summer,fall,winter
}

private static void doIt(Season s)
{
switch (s)
{
case spring:
System.out.println("value is " + Season.spring);
case summer:
System.out.println("value is " + Season.summer);
break;
case fall:
System.out.println("value is " + Season.fall);
case winter:
System.out.println("value is " + Season.winter);
break;
default:
System.out.println("default");
}
}

public static void main(String[] args)
{
for(Season s: Season.values())
{
      System.out.println(s);
}
doIt(Season.fall);
}

}

 

以上例子中：

for(Season s: Season.values())
{
      System.out.println(s); 
}的输出结果是：spring

                    summer

                     fall

                     winter

doIt(Season.fall);的输出结果是：fall 

                                             winter

 switch（x） ：从指定的case-x处开始执行 遇到break结束。