如何解决如何在 Java 中的 switch 语句中添加同义词?
我有下面的功能,我想为每个案例添加同义词,例如案例“north”也可以是“up”,案例“east”可能是正确的等等。因为所有案例都属于同一个try/catch声明我不确定如何为每个特定案例做到这一点。感谢任何帮助!谢谢
public void changeRoom(boolean isValidInput,String[] input,int attemptCount) {
while (isValidInput) {
switch (input[1]) {
case "north":
case "east":
case "south":
case "west":
try {
if (world.getCurrentRoom().roomExits.containsKey(input[1])) {
player.setMostRecentExit(input[1]);
world.setCurrentRoom(world.getCurrentRoom().roomExits.get(input[1]));
isValidInput = false;
if (isSound) {
walkEffect.playSoundEffect();
}
Thread.sleep(1800);
narrateRooms(world.getCurrentRoom().getDescription());
break;
}
} catch (InterruptedException e) {
e.printstacktrace();
}
default:
System.out.println("You hit a wall. Try again: ");
System.out.print(">>>");
attemptCount++;
if (attemptCount >= 2) {
System.out.println();
openMap();
System.out.println("Where would you like to go? ");
System.out.print(">>>");
}
input = scanner.nextLine().strip().toLowerCase().split(" ");
break;
}
}
解决方法
就这样列出那些案例:
switch (input[1]) {
case "north": case "up":
case "east": case "right":
case "south": case "down":
case "west": case "left":
,
我能够通过创建下面的函数来规范化输入。谢谢大家!
public String normalizeText(String input) {
List<String> northOptions = Arrays.asList("north","up");
List<String> southOptions = Arrays.asList("south","down");
List<String> eastOptions = Arrays.asList("east","right");
List<String> westOptions = Arrays.asList("west","left");
if (northOptions.contains(input.toLowerCase())) {
return "north";
}
if (southOptions.contains(input.toLowerCase())) {
return "south";
}
if (eastOptions.contains(input.toLowerCase())) {
return "east";
}
if (westOptions.contains(input.toLowerCase())) {
return "west";
}
return "";
}
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