Java中英文词典
阿炳的旅程 人气:0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:
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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