java中的智囊团游戏 包edu.blastermind.model; 导入java.util.Random; /** *基于文本的策划游戏版本。提示更简单,因为您可以 *知道正确销钉的位置(但你对销钉一无所知 *颜色正确的销钉位于错误的位置)。 * *@作者 * */ 公共类BlasterMindGame{ 私有静态最终整数=5; 私人字符串秘密; /** *创建一个包含以下内容的随机秘密的新游戏 *字母组合:A、B、C、D和/或E */ 公共BlasterMindGame(){ 随机rng=新随机(); this.secret=“ABCDE”; //TODO 7:用于创建秘密字符串的循环 StringBuffer guess=新的StringBuffer(“”); 对于(int i=0;i
大家好,我正在用java编写智囊团游戏,这是一个猜字符串的游戏。这个游戏的秘密不是数字,而是由大写字母a、B、C、D和E组成的5个字符的字符串。当我运行main方法时,我得到以下结果:java中的智囊团游戏 包edu.blastermind.model; 导入java.util.Random; /** *基于文本的策划游戏版本。提示更简单,因为您可以 *知道正确销钉的位置(但你对销钉一无所知 *颜色正确的销钉位于错误的位置)。 * *@作者 * */ 公共类BlasterMindGame{ 私有静态最终整数=5; 私人字符串秘密; /** *创建一个包含以下内容的随机秘密的新游戏 *字母组合:A、B、C、D和/或E */ 公共BlasterMindGame(){ 随机rng=新随机(); this.secret=“ABCDE”; //TODO 7:用于创建秘密字符串的循环 StringBuffer guess=新的StringBuffer(“”); 对于(int i=0;i,java,for-loop,while-loop,Java,For Loop,While Loop,大家好,我正在用java编写智囊团游戏,这是一个猜字符串的游戏。这个游戏的秘密不是数字,而是由大写字母a、B、C、D和E组成的5个字符的字符串。当我运行main方法时,我得到以下结果: package edu.blastermind.model; import java.util.Random; /** * Text-based version of the Mastermind game. The hints are simpler in that you * know the pos
package edu.blastermind.model;
import java.util.Random;
/**
* Text-based version of the Mastermind game. The hints are simpler in that you
* know the position of correct pegs (but you know nothing at all about
* correctly-colored pegs in wrong positions).
*
* @author
*
*/
public class BlasterMindGame {
private static final int NUM_PEGS = 5;
private String secret;
/**
* Creates a new game with a randomized secret consisting of some
* combination of the letters: A, B, C, D, and/or E
*/
public BlasterMindGame() {
Random rng = new Random();
this.secret = "ABCDE";
// TODO 7: for-loop to create the secret string
StringBuffer guess = new StringBuffer("");
for (int i = 0; i < NUM_PEGS - 1; i++) {
char currentChar = guess.charAt(i);
String cs = currentChar + "";
currentChar = (char) ((char) (currentChar));
Character A = guess.charAt(0);
Character B = guess.charAt(1);
Character C = guess.charAt(2);
Character D = guess.charAt(3);
Character E = guess.charAt(4);
if (cs.matches("0")) {
guess.append(secret.charAt(A));
}else if (cs.matches("1")) {
guess.append(secret.charAt(B));
}else if (cs.matches("2")) {
guess.append(secret.charAt(C));
}else if (cs.matches("3")) {
guess.append(secret.charAt(D));
}else if (cs.matches("4")) {
guess.append(secret.charAt(E));
}
}
}
/**
* Tries to guess the secret.
*
* @param guess
* a 5-character string made up of only A, B, C, D, or E. Must be
* exactly 5 characters long.
*
* @return a 5-character string made up of the characters - and O,
* indicating: '-' for an incorrect match in that position 'O' for a
* correct match in that position
*/
public String getEasyHint(String guess) {
String hint = "";
return hint;
}
/**
* Lets us know if we've guessed the secret or not.
*
* @param guess
* our guess (must be exactly 5 characters long)
* @return true if correct, false otherwise.
*/
public boolean isGuessCorrect(String guess) {
return this.secret.equals(guess);
}
}
package edu.westga.blastermind.controllers;
import java.util.Scanner;
import edu.westga.blastermind.model.BlasterMindGame;
public class BlasterMind {
public static void main(String[] args) {
BlasterMindGame game = new BlasterMindGame();
Scanner kb = new Scanner(System.in);
int turns = 1;
while(true){
System.out.println("Enter a guess:");
String guess = kb.next();
if (!game.isGuessCorrect(guess)){
System.out.println("You guessed incorrect!");
String input = kb.next();
turns++;
} else if (game.isGuessCorrect(guess)) break;
}
// TODO 6: write the game simulation loop
System.out.printf("You won in %d turns\n", turns);
}
}
线程“main”java.lang.StringIndexOutOfBoundsException中的异常:字符串索引超出范围:0
位于java.lang.StringBuffer.charAt(未知源)
位于edu.westga.blastermind.model.BlasterMindGame.(BlasterMindGame.java:29)
位于edu.westga.blastermind.controllers.blastermind.main(blastermind.java:11)
假设while循环:•只要猜测不正确,它就会运行
在正文中:
- 告诉用户猜测不正确
- 从扫描仪获取下一个猜测
- 增加圈数 我认为我有这个权利(如果我没有,请告诉我),并且for循环应该:
- 从0迭代到桩号(注意静态常量NUM_pegs)
- 对于每个迭代:
•获取介于0和NUM_PEGS-1之间的随机数(请参阅此处的nextInt(int n)随机方法以获取帮助)
- 如果数字为0,请将“A”附加到此.secret
- 如果数字为1,请将“B”附加到此.secret
- 分别为2、3、4和C、D、E等
由于某种原因,当我运行程序时,我得到了上面所述的错误,我不知道如何更改它以使其正常工作。感谢您的帮助。提前感谢。以下是异常源:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 0
at java.lang.StringBuffer.charAt(Unknown Source)
at edu.westga.blastermind.model.BlasterMindGame.<init>(BlasterMindGame.java:29)
at edu.westga.blastermind.controllers.BlasterMind.main(BlasterMind.java:11)
private static final int NUM_PEGS=5;
//猜测是空的(到目前为止没有字符)
StringBuffer guess=新的StringBuffer(“”);
对于(int i=0;i
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 0
at java.lang.StringBuffer.charAt(Unknown Source)
at edu.westga.blastermind.model.BlasterMindGame.<init>(BlasterMindGame.java:29)
at edu.westga.blastermind.controllers.BlasterMind.main(BlasterMind.java:11)
private static final int NUM_PEGS=5;
//猜测是空的(到目前为止没有字符)
StringBuffer guess=新的StringBuffer(“”);
对于(inti=0;i
private static final int NUM_PEGS = 5;
// The guess is empty (has no chars so far)
StringBuffer guess = new StringBuffer("");
for (int i = 0; i < NUM_PEGS - 1; i++) { // <- NUM_PEGS == 5; so the loop runs
// And you're trying to get a char from an empty buffer...
char currentChar = guess.charAt(i);
您需要将字符串传递给字符串缓冲区
private static final int NUM_PEGS = 5;
// The guess is empty (has no chars so far)
StringBuffer guess = new StringBuffer("");
for (int i = 0; i < NUM_PEGS - 1; i++) { // <- NUM_PEGS == 5; so the loop runs
// And you're trying to get a char from an empty buffer...
char currentChar = guess.charAt(i);
我强烈建议您使用调试器进行调试。如果您这样做,我认为您的错误将变得显而易见。在我实现for循环之前,while循环执行得很好,然后我开始收到上述错误。是的,您可能想考虑一下for
loopI strongl顶部前后的行我建议您使用调试器来完成此操作。如果您这样做,我认为您的错误将变得显而易见。在我实现for循环之前,while循环执行得很好,然后我开始收到上面所述的错误。是的,您可能会想一想for
循环顶部前后的行感谢我刚刚尝试这似乎是有效的