java–搜尋字串在檔案中出現的次數源碼

import java.io.BufferedReader;<br />import java.io.File;<br />import java.io.FileReader;<br />import java.io.IOException;<br />/**<br /> * 取得字串在檔案中出現的次數<br /> * @author lichaoever<br /> *<br /> */<br />public class Search {<br />File file = new File("/usr/test.txt");</p><p>private String buffer;<br />public Search() {<br />try {<br />System.out.println(this.reSearch("SearchSomeThing"));<br />} catch (IOException e) {<br />// TODO Auto-generated catch block<br />e.printStackTrace();<br />}</p><p>}<br />public int reSearch(String find_str) throws IOException<br />{<br />FileReader reader = new FileReader(file);<br />BufferedReader reader2 = new BufferedReader(reader);<br />String s = "";<br />do<br />{<br />buffer += s;<br />}while(( s = reader2.readLine()) != null);</p><p>return buffer.split(find_str).length - 1;<br />}<br />public static void main(String[] args) {<br />new Search();<br />}<br />}