java - java随机字符串数组

Question

String [] rnum = {"Black", "Red", "Black", "Red", "Black", "Red", "Black","Red",
"Black", "Red", "Black", "Red", "Black", "Red", "Black", "Red","Black", "Red", "Green"}; 
int A = rnum.length; 
//the "Math.random() method will get you a random color

int random = (int) (Math.random() * A);  
//randomize the strings  
String Color = rnum[random];

我怎么说“if color = black then do this”或者绿色相同或红色相同”

Answer 1

你是说...

if(Color.equals("Black")) {
   // then do this
} else if(Color.equals("Red"){
   // then do this
}

甚至(在 Java >= 1.7 中)

switch(Color) {
   case "Black":
       // then do this
       break;
   case "Red":
       // then do this
       break;
}