java - 从参数广播文本

Question

我想做一个广播命令。当 /broadcast This is a test 运行时，它会在游戏中广播 This is a test(带空格)。我试过使用:

Bukkit.getServer().broadcastMessage(ChatColor.RED + args[0] + " " + args[1] + " " + args[2] + " " + args[3] + " " + args[4] + " " + args[5] + " " + args[6] + " " + args[7] + " " + args[8] + " " + args[9] + " " + args[10] + " " + args[11] + " " + args[12] + " " + args[13] + " " + args[14]);

但我知道这是错误的。我该如何解决这个问题？

Answer 1

如果您使用的是 Java 8，则可以通过 Collectors 使用方便的方法:

Bukkit.getServer().broadcastMessage(
    ChatColor.RED + Arrays.stream(args)
                        .collect(Collectors.joining(" "))
);

否则，遍历数组并使用 StringBuilder 连接元素:

if (args.length == 0)
    // Premature return instead of using if-else
    // to reduce cyclomatic complexity.
    return false;
if (args.length == 1) {
    // fast path
    Bukkit.getServer().broadcastMessage(ChatColor.RED + args[0]);
    return false;
}

StringBuilder message = new StringBuilder(args[0]);
for (String each : args)
    message.append(" ").append(each);
String broadcast = message.deleteCharAt(0).toString();
Bukkit.getServer().broadcastMessage(ChatColor.RED + broadcast);