课堂训练

标签：except   port   null   单词   main   for   网上   split   cep   

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Scanner;
import java.util.Set;

public class Text{
public static void main(String [] args) {
File word=new File("G:\\JAVA\\新建文件夹\\word\\word.txt");
File tongji=new File("G:\\JAVA\\新建文件夹\\word\\tongji.txt");
try {
BufferedReader read=new BufferedReader(new FileReader(word));
StringBuffer d=new StringBuffer();
String s=null;
while((s=read.readLine())!=null)
{
d.append(s);
}
read.close();
Scanner scanner=new Scanner(word);
HashMap<String, Integer > hashMap=new HashMap<String,Integer>();
while(scanner.hasNextLine())
{
String line=scanner.nextLine();
System.out.println(line);
String[] lineWords=line.split("\\W+");
Set<String> wordSet=hashMap.keySet();
for(int i=0;i<lineWords.length;i++)
{
if(wordSet.contains(lineWords[i]))
{
Integer number=hashMap.get(lineWords[i]);
number++;
hashMap.put(lineWords[i], number);
}
else
{
hashMap.put(lineWords[i], 1);
}
}

}
Iterator<String> iterator=hashMap.keySet().iterator();
BufferedWriter bw = new BufferedWriter(new FileWriter("G:\\tongji.txt"));
while(iterator.hasNext())
{
String word1=iterator.next();
bw.write("单词:"+ word1 + "\t3出现次数:" + hashMap.get(word1));
bw.newLine();
System.out.printf("单词:%-12s 出现次数:%d\n",word1,hashMap.get(word1));
}
bw.close();

} catch (IOException e) {

e.printStackTrace();
}

}
}

经过在网上不断的找资料和舍友的帮助，也算是完成了，不会的东西还是很多。

课堂训练

标签：except   port   null   单词   main   for   网上   split   cep   

原文地址：https://www.cnblogs.com/quyangzhangsiyuan/p/9775653.html