输入一个单词，可以查询单词意思，使用了字典
算法思想：字典文件读取后按单词长度进行了分组，单词查询时也是按照单词长度
选择对应的单词组进行查询，查询效率高
使用单词库：https://wenku.baidu.com/view/503b1318b14e852459fb57b0.html，转换成txt进行读取
读取文件输出遇到的错误总结：
1.读txt文件第一行会乱码；
方案：将txt转换成UTF-8无BOM编码格式，使用超级文本编辑器UltraEdit另存转换
2.eclipse读取中文输出乱码
方案：将eclipse文本格式设置为UTF-8格式，项目project-properties-resource
不足：单词库不足，单词语义解释不全
使用java编程：
package wordQuery;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;
public class WordQuery {
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
Scanner sc=new Scanner(System.in);
while(true) {
System.out.println("Please enter Englishword,If want end please input ending!!!");
String wordin=sc.nextLine();
if(wordin.equals("ending!!!")){break;}
else {
Map<Integer,List<Word>> dic=readDictionary();
Word word=findWord(wordin,dic);
if(word==null) {
System.out.println("no such word,please input again");
}
else
System.out.println(word);
}
}
sc.close();
}
//从txt读入字典并按长度分组
public static Map<Integer,List<Word>> readDictionary() throws IOException{
File file=new File("dic\\EnglishUTF-8noBOM.txt");
List<Word> list=new ArrayList<Word>();
list=read(file);
Map<Integer,List<Word>> wordmap=dividMap(list);
return wordmap;
}
//从txt读入字典
public static List<Word> read(File file) throws IOException{
List<Word> list=new ArrayList<Word>();
BufferedReader in=new BufferedReader(new FileReader(file));
String words;
while((words=in.readLine())!=null) {
//System.out.println(words);
String[] str=words.trim().split(" ");
Word wordObject=new Word(str[0],str[1],str[2]);
list.add(wordObject);
}
in.close();
return list;
}
//按单词长短进行分组，单词是一个对象包含单词、拼读、词属性、含义
public static Map<Integer,List<Word>> dividMap(List<Word> possibleWord){
Map<Integer,List<Word>> wordmap=new TreeMap<Integer,List<Word>>();
for(int i=0;i<possibleWord.size();i++) {
Word wordObject =possibleWord.get(i);
int len=wordObject.getWord().length();
if(wordmap.get(len)==null) {
List<Word> lset=new ArrayList<Word>();
lset.add(wordObject);
wordmap.put(len, lset);
}
else
{
List<Word> set=wordmap.get(len);
set.add(wordObject);
}
}
Map<Integer,List<Word>> words=new TreeMap<Integer,List<Word>>();
for(Map.Entry<Integer, List<Word>> entry:wordmap.entrySet()) {
Integer length=entry.getKey();
List<Word> set=entry.getValue();
List<Word> list=new ArrayList<Word>(set);
words.put(length, list);
}
return words;
}
//在单词库里寻找单词读音及含义
public static Word findWord(String word,Map<Integer,List<Word>>dic) {
Integer len=word.length();
List<Word> list=dic.get(len);
for(Word wordtemp:list) {
if(word.equalsIgnoreCase(wordtemp.getWord())) {
return wordtemp;
}
}
return null;
}
}
单词定义
package wordQuery;
public class Word {
//单词 单词拼读 单词属性
private String word;
private String spell;
private String properties;
public Word(String wordin,String spellin,String propertiesin){
word=wordin;
spell=spellin;
properties=propertiesin;
}
public String toString() {
return (word+" "+spell+" "+properties);
}
public String getWord() {
return word;
}
public String getWordSpell() {
return spell;
}
public String getWordProperties() {
return properties;
}
public String addProperties(String proper) {
StringBuffer buffer=new StringBuffer(properties);
buffer.append(proper);
properties=new String(buffer);
return properties;
}
}