Java 聊天机器人镜像和预设回复

Question

所以我得到了我正在开发的 java 聊天机器人程序。

根据用户所说的内容，如果用户的回复包含关键字之一 I love pizza --> you love pizza，聊天机器人会给出预设回复 canned_phrases 或镜像回复.

问题是 聊天机器人没有返回镜像版本。我认为问题在于单词被彼此覆盖，但我不确定如何解决这个问题。

感谢您的帮助！

import java.util.Random;
import java.util.Scanner;

public class Conversation {

    public static void main(String[] args) {
        String[] canned_phrases = {"Yes",
                                   "Hmmm. Please tell me more news",
                                   "Of course",
                                   "Okay",
                                   "Interesting...",
                                   "Indeed"};
        int canned_times = canned_phrases.length;

        Scanner conversation_start = new Scanner(System.in);
        System.out.println("\nWelcome!\n");
        System.out.println("How many rounds of conversation would you like to have?\n");
        int rounds = conversation_start.nextInt();
        conversation_start.nextLine();
        String[] transcript = new String[2 * rounds + 1];
        transcript[0] = "Sounds great! How are you doing today?";
        System.out.println(transcript[0]);
        for (int i = 0; i < rounds; i++) {
            String user_words = conversation_start.nextLine();
            String mirrored;
            String new_version = user_words.replace("I", "you");
            new_version = new_version.replace("me", "you");
            new_version = new_version.replace("am", "are");
            new_version = new_version.replace("you", "I");
            new_version = new_version.replace("my", "your");
            new_version = new_version.replace("your", "my");
            new_version = new_version.replace("my", "you");
            if (!new_version.equals(user_words)) {
                mirrored = new_version;
            }
            else {
                mirrored = canned_phrases[(int) Math.floor(canned_times * Math.random())];
            }
            System.out.println(mirrored);
            transcript[2 * i + 1] = user_words;
            transcript[2 * i + 1] = mirrored;
        }
        System.out.println("Thank you for chatting with me! Come back soon!");
        System.out.println(" ");
        System.out.println("TRANSCRIPT ");
        for (int i = 0; i <= transcript.length; i++) {
            System.out.println(transcript[i]);
        }
        System.exit(0);
    }
}

Answer 1

我对您的代码稍作修改，现在它可以按您的预期运行：

     public static void main(String[] args) { 
        String[] canned_phrases = {"Yes", "Hmmm. Please tell me more news", "Of course", "Okay", "Interesting...", "Indeed"};
        int canned_times = canned_phrases.length;
       
        Scanner conversation_start = new Scanner(System.in);
        System.out.println("\nWelcome!\n");
        System.out.println("How many rounds of conversation would you like to have?\n");
        
        int rounds = conversation_start.nextInt();
        conversation_start.nextLine();
        String[] transcript = new String[2*rounds+1];
        transcript[0] = "Sounds great! How are you doing today?"; 
        System.out.println(transcript[0]);
        

          for (int i = 0; i < rounds; i++) {
            String user_words = conversation_start.nextLine();
            String mirrored;
            String new_version = user_words.replace("I", "you");
            new_version = new_version.replace("me","you");
            new_version = new_version.replace("am","are");
            //1st change as you replaced it above so not swap it again
            //new_version = new_version.replace("you","I");
            new_version = new_version.replace("my","your");
            new_version = new_version.replace("your","my");
            new_version = new_version.replace("my","you");
            
            //by commenting the line above, will enter the IF-block
            if (!new_version.equals(user_words)) {
                mirrored = new_version;
            } else {
                mirrored = canned_phrases[(int) Math.floor(canned_times * Math.random())];
            }
            System.out.println(mirrored);
            
            transcript[2*i+1] = user_words;
            //2nd change to not overwrite the same index i added 2 instead of 1
            transcript[2*i+2] = mirrored;
            
          }
        System.out.println("Thank you for chatting with me! Come back soon!");

        System.out.println(" ");
        System.out.println("TRANSCRIPT ");
        //3rd change i removed the = from the loop condition to prevent exception appeared
        for (int i = 0; i < transcript.length; i++) {
          System.out.println(transcript[i]);
        }
        System.exit(0);
      }

Answer 2

我认为实现你想要的最好方法是将 user-entered 句子拆分成单词并根据你的规则更改单个单词，例如如果单词是 my 然后将其更改为你的。在下面的代码中，我按顺序遍历所有单词，根据需要更改每个单词并将它们附加到 StringBuilder 以便在遍历所有单词后，StringBuilder 包含镜像句子。

（代码后有更多注释。）

import java.util.Random;
import java.util.Scanner;

public class Conversation {

    public static void main(String[] args) {
        String[] cannedPhrases = {"Yes",
                                  "Hmmm. Please tell me more news",
                                  "Of course",
                                  "Okay",
                                  "Interesting...",
                                  "Indeed"};
        int cannedTimes = cannedPhrases.length;
        Random rand = new Random();
        Scanner conversationStart = new Scanner(System.in);
        System.out.println("\nWelcome!\n");
        System.out.println("How many rounds of conversation would you like to have?\n");
        int rounds = conversationStart.nextInt();
        conversationStart.nextLine();
        String[] transcript = new String[2 * rounds];
        transcript[0] = "Sounds great! How are you doing today?";
        System.out.println(transcript[0]);
        int index = -1;
        for (int i = 0; i < rounds; i++) {
            String userWords = conversationStart.nextLine();
            String mirrored;
            StringBuilder result = new StringBuilder();
            String[] words = userWords.split(" ");
            boolean first = true;
            for (String word : words) {
                if (first) {
                    first = false;
                }
                else {
                    result.append(' ');
                }
                switch (word) {
                    case "I":
                        word = "you";
                        break;
                    case "me":
                        word = "you";
                        break;
                    case "am":
                        word = "are";
                        break;
                    case "you":
                        word = "I";
                        break;
                    case "my":
                        word = "your";
                        break;
                    case "your":
                        word = "my";
                        break;
                }
                result.append(word);
            }
            String newVersion = result.toString();
            if (!newVersion.equals(userWords)) {
                mirrored = newVersion;
            }
            else {
                mirrored = cannedPhrases[rand.nextInt(cannedTimes)];
            }
            System.out.println(mirrored);
            transcript[++index] = userWords;
            transcript[++index] = mirrored;
        }
        System.out.println("Thank you for chatting with me! Come back soon!");
        System.out.println(" ");
        System.out.println("TRANSCRIPT ");
        for (int i = 0; i < transcript.length; i++) {
            System.out.println(transcript[i]);
        }
        System.exit(0);
    }
}

你应该尽量坚持Java naming conventions。我相应地更改了您代码中的变量名称。
我没有操纵 [first] for 循环变量 i 来处理对话回合和成绩单索引，而是使用了一个名为 index 的单独变量作为成绩单.
Switching on string 已添加到 Java 7.
打印成绩单的 for 循环是错误的。终止条件应该是 i < transcript.length（而不是 i <= transcript.length）。
以上代码假定user-entered 句子由用单个空格分隔的单词组成。如果你想更复杂地处理 user-entered 句子，例如处理标点符号，如逗号、句点等，那么你需要更改 split method's regular expression.

这是示例的输出运行:


Welcome!

How many rounds of conversation would you like to have?

2
Sounds great! How are you doing today?
OK
Of course
Why do you say that
Why do I say that
Thank you for chatting with me! Come back soon!
 
TRANSCRIPT 
OK
Of course
Why do you say that
Why do I say that

Java 聊天机器人镜像和预设回复

Java chatbot mirroring and canned responses

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java.util.scanner