我知道我早些时候问了类似这样的问题（虽然我想出来了）
*while(!newWord.equalsIgnoreCase(guess))
forloop:
{ while(!newWord.equalsIgnoreCase(guess))
for ( String a : spaces.split("\\s"))
{
count++;
int x = Integer.valueOf(a);
if (x > guess.length())
{
System.out.println("Your input is not valid, try again");
break innerloop;
}
if (Character.toLowerCase(newWord.charAt(x)) == letterInput.charAt(0))
{
//System.out.println("Guess is correct for position " + x);
guess = guess.substring(0, x) + letterInput + guess.substring(x + 1, guess.length());
}
if (Character.toLowerCase(newWord.charAt(x)) != letterInput.charAt(0))
{
if(count < spaces.split("\\s").length - 1)
{
break forloop;
}
}
if (count == spaces.split("\\s").length)
guesses= guesses - 1;
System.out.println("Your letter was not found in spaces you provided");
System.out.println("Guesses Remaining: " + guesses);
break;
}*
但现在我在for循环之后的第三个if语句处的break命令只会让我回到我整个代码开头的循环
*while(!newWord.equalsIgnoreCase(guess))
innerloop:
{ while(true)
{
System.out.println("Please enter the letter you want to guess");
String letterInput = keyboard.next();
letterInput = Character.toString(letterInput.charAt(0));
if(!Character.isLetter(letterInput.charAt(0)))
{
System.out.println("Your input is not valid, try again");
break;
}
if(letterInput.equalsIgnoreCase("solve"))
{
System.out.println("Please solve the answer:");
String userSolve = keyboard.next();
if (!userSolve.equalsIgnoreCase(newWord))
{
System.out.println("That is not the secret word");
guesses = guesses - 1;
System.out.println("Guesses remaining: " + guesses);
}
else
{
System.out.println("You win!");
System.out.println("You have guessed the word! Congratulations");
System.out.println("Would you like to play again? Yes(y) or No (n)");
response = keyboard.next();
if (response.equalsIgnoreCase("n"))
{
System.exit(0);
}
if(response.equalsIgnoreCase("y"))
{
continue;
}
正如你所看到的，我在循环上放置了标签，我特意想回去。我的休息目前正在回到我的内圈标签但是我希望它能带我回到我的forloop标签。我到底该怎么做？我尝试使用while循环包装for循环，因为这对我上次有用，但它在这里不起作用。这是我的整个代码供参考，我很难道歉，如果它很难读，我只在2个月前开始编码。
package e;
import java.util.Scanner;
public class HangmanBeta{
private static final boolean testingMode = true;
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
keyboard.useDelimiter("\\n");
while (true) {
System.out.println("Enter your difficulty: Easy (e), Intermediate (i), or Hard (h)");
String diff = keyboard.next();
int amountOfSpaces = 0;
String response = "";
String guess = "";
String newGuess = "";
String s = "";
int count = 0;
String newWord = "loops";//RandomWord.newWord();
int guesses = 0;
for (int i = 0; i < newWord.length(); i++) {
guess = newWord.replaceAll("[^#]", "-");
}
if ((diff.equalsIgnoreCase("e")) || (diff.equalsIgnoreCase("i")) || (diff.equalsIgnoreCase("h"))) {
if (diff.equalsIgnoreCase("e"))
{
guesses = 15;
}
if(diff.equalsIgnoreCase("i"))
{
guesses = 12;
}
if(diff.equalsIgnoreCase("h"))
{
guesses = 15;
}
if (testingMode == true)
{
System.out.println("The secret word is:" + " " + newWord);
}
System.out.println("The word is:" + " " + guess);
while(!newWord.equalsIgnoreCase(guess))
innerloop:
{ while(true)
{
System.out.println("Please enter the letter you want to guess");
String letterInput = keyboard.next();
letterInput = Character.toString(letterInput.charAt(0));
if(!Character.isLetter(letterInput.charAt(0)))
{
System.out.println("Your input is not valid, try again");
break;
}
if(letterInput.equalsIgnoreCase("solve"))
{
System.out.println("Please solve the answer:");
String userSolve = keyboard.next();
if (!userSolve.equalsIgnoreCase(newWord))
{
System.out.println("That is not the secret word");
guesses = guesses - 1;
System.out.println("Guesses remaining: " + guesses);
}
else
{
System.out.println("You win!");
System.out.println("You have guessed the word! Congratulations");
System.out.println("Would you like to play again? Yes(y) or No (n)");
response = keyboard.next();
if (response.equalsIgnoreCase("n"))
{
System.exit(0);
}
if(response.equalsIgnoreCase("y"))
{
continue;
}
}
}
System.out.println("Please enter the spaces you want to check (seperated by spaces)");
String spaces = keyboard.next();
amountOfSpaces = spaces.length();
if (diff.equalsIgnoreCase("e"))
{
if(amountOfSpaces != 7)
{
System.out.println("Your input is not valid, try again");
break innerloop;
}
}
if (diff.equalsIgnoreCase("i"))
{
if(amountOfSpaces != 5)
{
System.out.println("Your input is not valid, try again");
break innerloop;
}
}
if (diff.equalsIgnoreCase("h"))
{
if(amountOfSpaces != 3)
{
System.out.println("Your input is not valid, try again");
break innerloop;
}
{
while(!newWord.equalsIgnoreCase(guess))
forloop:
{ while(!newWord.equalsIgnoreCase(guess))
for ( String a : spaces.split("\\s"))
{
count++;
int x = Integer.valueOf(a);
if (x > guess.length())
{
System.out.println("Your input is not valid, try again");
break innerloop;
}
if (Character.toLowerCase(newWord.charAt(x)) == letterInput.charAt(0))
{
//System.out.println("Guess is correct for position " + x);
guess = guess.substring(0, x) + letterInput + guess.substring(x + 1, guess.length());
}
if (Character.toLowerCase(newWord.charAt(x)) != letterInput.charAt(0))
{
if(count < spaces.split("\\s").length - 1)
{
break forloop;
}
if (count == spaces.split("\\s").length)
guesses= guesses - 1;
System.out.println("Your letter was not found in spaces you provided");
System.out.println("Guesses Remaining: " + guesses);
break;
}
if (guesses == 0)
{
System.out.println("You have failed to guess the word....:(");
System.out.print("Would you like to play again? Yes(y) or No(n)");
response = keyboard.next();
if (response.equalsIgnoreCase("n"))
{
System.exit(0);
}
if(response.equalsIgnoreCase("y"))
{
continue;
}
} }
if (newWord.equalsIgnoreCase(guess))
{
System.out.println("You win!");
System.out.println("You have guessed the word! Congratulations");
System.out.println("Would you like to play again? Yes(y) or No (n)");
response = keyboard.next();
if (response.equalsIgnoreCase("n"))
{
System.exit(0);
}
if (response.equalsIgnoreCase("y"))
{
continue;
}
}
}
System.out.println("Your Guess is in the word");
}
if(guesses == guesses - 1)
{
System.out.println("Your letter was not found in spaces you provided");
System.out.println("Guesses Remaining: " + guesses);
break innerloop;
//System.out.print(spaces.split("\\s").length);
//System.out.println("Your Guess is in the word");
//System.out.println();
//System.out.println("Updated word " + guess);
//System.out.println("Guesses Remaining: " + guesses);
}
}
}
}
}
}
}
}
答案 0 :(得分：0)
...但是现在我在for循环之后的第三个if语句处的break命令只是让我回到了整个代码开头的循环。
实际上，没有。
break 永远不会带你回来。它总是带你前进。在这种情况下，它会带你前进 块后面带有你破坏的标签。例如：
while (....) {
label: while (...) {
...
if (...) break label;
...
}
// Breaks to HERE
}
然后你可以回去，因为你去过的环境中有些东西。但它是上下文，而不是break。
不幸的是，我无法弄清楚如何将此应用到您的示例中，因为1）您无法解释代码应该执行的操作，2）很难确定哪个版本你指的是，3）代码不可编译，4）可读性问题让我头疼。
因此，除非你能弄清楚如何使你的代码更具可读性，否则这就是我能给你的所有帮助。