switch()里的参数类型

允许byte,short,int,char,enum等

//测试switch里的参数类型
public class TestSwitch
{
    enum b{a,b,c}; //注意：enum不能为本地类型，必须把他放到static void main的外面
    public static void main(String[] args)
    {
        int i = 1;
        switch(i)
        {
        case 1:
            System.out.println("int型OK！");
            break;
        }

        short j = 1;
        switch(j)
        {
        case 1:
            System.out.println("short型OK！");
            break;
        }

        byte k = 1;
        switch(k)
        {
        case 1:
            System.out.println("byte型OK！");
            break;
        }

        char a = 'a';
        switch(a)
        {
        case 'a':
            System.out.println("char型OK！");
            break;
        }

        switch(b.c)
        {
        case a:
            System.out.println("enum型aＯＫ！");
            break;
        case b:
            System.out.println("enum型bＯＫ！");
            break;
        case c:
            System.out.println("enum型cＯＫ！");
            break;
        }
    }
}