countwords.java

此程序为java计数程序,把查找文档的次数记录下,记录文档字数

import java.io.*;

public class CountWords{
	public static void main(String args[])throws IOException{
		System.out.println("Enter a word:");
		String str,buf="";
		int c;
		BufferedReader in = new BufferedReader(new InputStreamReader (System.in)) ;
		str = in.readLine();
		FileReader fin = new FileReader("dat.txt");
		int num=0;
		c=fin.read();
		do{
			char ch=(char)c;
			if(ch<='z'&&ch>='a'||ch<='Z'&&ch>='A'){
				buf=buf+ch;
			}
			else{
				if(buf.equals(str)){
					num++;
				}
				buf="";	
			}				
		}while((c=fin.read())!=-1);
		System.out.println("The number of word \""+str+"\" is: "+num);
	}
}