本文实例为大家分享了Java实现中英文词典功能的具体代码，供大家参考，具体内容如下
功能如下：
1、可以向词典中增加中英文单词，并提供修改和删除功能
2、完成输入中文查询英文的功能，如果没有提示没有查到
3、完成输入英文查询中文的功能，如果没有提示没有查到
4、功能的选择使用文字菜单完成，每个操作要求有明确的操作提示和结果演示，以及结果演示的暂停。
代码实现：
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import java.util.Objects; import java.util.HashMap; import java.util.Scanner;
//单词模型类 class Word { private String name; private String meaning;
public Word() { }
public Word(String name, String meaning) { this .name = name; this .meaning = meaning; }
public String getName() { return name; }
public void setName(String name) { this .name = name; }
public String getMeaning() { return meaning; }
public void setMeaning(String meaning) { this .meaning = meaning; }
@Override public boolean equals(Object o) { if ( this == o) return true ; if (o == null || getClass() != o.getClass()) return false ; Word word = (Word) o; return Objects.equals(name, word.name) && Objects.equals(meaning, word.meaning); }
@Override public int hashCode() { return Objects.hash(name, meaning); } }
//CURD class Dictionary { private HashMap<String, Word> ch = null ; private HashMap<String, Word> en = null ;
//初始化 public Dictionary() { this .ch = new HashMap<String, Word>(); this .en = new HashMap<String, Word>(); }
//添加中文单词 public void addChWord() { System.out.println( "请输入单词名称" ); Scanner sc = new Scanner(System.in); String name = sc.next(); if (ch.containsKey(name)) { System.out.println( "这个单词已存在，请重试" ); } else { System.out.println( "请输入这个单词的英文翻译" ); String meaning = sc.next(); ch.put(name, new Word(name, meaning)); System.out.println( "添加成功" ); } backMenu(); }
//添加英文单词 public void addEnWord() { System.out.println( "请输入单词名称" ); Scanner sc = new Scanner(System.in); String name = sc.next(); if (en.containsKey(name)) { System.out.println( "这个单词已存在，请重试" ); } else { System.out.println( "请输入这个单词的中文翻译" ); String meaning = sc.next(); en.put(name, new Word(name, meaning)); System.out.println( "添加成功" ); } backMenu(); }
//改变中文单词 public void changeCh() { System.out.println( "请输入您要修改的中文单词" ); Scanner sc = new Scanner(System.in); String name = sc.next(); boolean flag = ch.containsKey(name); if (!flag) { System.out.println( "您要修改的中文单词不存在，请输入任意字母返回" ); sc.next(); } else { System.out.println( "请输入修改后的内容" ); String meaning = sc.next(); ch.put(name, new Word(name, meaning)); System.out.println( "修改成功" ); }
backMenu(); }
//改变英文单词 public void changeEn() { System.out.println( "请输入您要修改的英文单词" ); Scanner sc = new Scanner(System.in); String name = sc.next(); boolean flag = en.containsKey(name); if (!flag) { System.out.println( "您要修改的英文单词不存在，请输入任意字母返回" ); sc.next(); } else { System.out.println( "请输入修改后的内容" ); String meaning = sc.next(); en.put(name, new Word(name, meaning)); System.out.println( "修改成功" ); } backMenu(); }
//删除中文单词 public void deleteCh() { System.out.println( "请输入您要删除的中文单词" ); Scanner sc = new Scanner(System.in); String name = sc.next(); if (ch.remove(name) != null ) System.out.println( "删除成功" ); else System.out.println( "您要删除的单词不存在，请重试" ); backMenu(); }
//删除英文单词 public void deleteEn() { System.out.println( "请输入您要删除的英文单词" ); Scanner sc = new Scanner(System.in); String name = sc.next(); if (en.remove(name) != null ) System.out.println( "删除成功" ); else System.out.println( "您要删除的单词不存在，请重试" ); backMenu(); }
//查询中文单词的翻译 public void seachEn() { System.out.println( "请输入您要查询的中文单词" ); Scanner sc = new Scanner(System.in); String name = sc.next(); boolean flag = ch.containsKey(name); if (!flag) { System.out.println( "您要查询的中文单词不存在,请重试" ); } else { Word word = ch.get(name); System.out.println(name + "的英文翻译是" + word.getMeaning()); } backMenu(); }
//查询英文单词的中文翻译 public void seachCh() { System.out.println( "请输入您要查询的英文单词" ); Scanner sc = new Scanner(System.in); String name = sc.next(); boolean flag = en.containsKey(name); if (!flag) { System.out.println( "您要查询的英文单词不存在,请重试" ); } else { Word word = en.get(name); System.out.println(name + "的中文翻译是" + word.getMeaning()); } backMenu(); }
public void backMenu() { System.out.println( "请输入9返回菜单" ); Scanner sc = new Scanner(System.in); sc.next(); System.out.println(); } }
//测试类 public class MainClass { public static void main(String[] args) { Dictionary myDictionary = new Dictionary(); while ( true ) { System.out.println( "————————欢迎使用中英文词典系统————————" ); System.out.println( "1.添加中文单词" ); System.out.println( "2.添加英文单词" ); System.out.println( "3.修改中文单词" ); System.out.println( "4.修改英文单词" ); System.out.println( "5.删除中文单词" ); System.out.println( "6.删除英文单词" ); System.out.println( "7.查询中文单词翻译" ); System.out.println( "8.查询英文单词翻译" ); System.out.println( "9.退出系统" ); System.out.println( "请输入你的选择：" );
Scanner sc = new Scanner(System.in); int i = sc.nextInt(); switch (i) { case 1 : myDictionary.addChWord(); break ; case 2 : myDictionary.addEnWord(); break ; case 3 : myDictionary.changeCh(); break ; case 4 : myDictionary.changeEn(); break ; case 5 : myDictionary.deleteCh(); break ; case 6 : myDictionary.deleteEn(); break ; case 7 : myDictionary.seachEn(); break ; case 8 : myDictionary.seachCh(); break ; case 9 : System.out.println( "谢谢使用" ); System.exit( 0 ); } } } } |
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原文链接：https://blog.csdn.net/weixin_51119270/article/details/120317366