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package regxdemo;import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;public class CountFile { /** * @param args */ static int cntCode=0, cntNode=0, cntSpace=0; static boolean flagNode = false; public static void main(String[] args) { // TODO Auto-generated method stub BufferedReader br = null; try { br = new BufferedReader(new FileReader("TestFile.java")); String line=null; while((line = br.readLine()) != null) pattern(line); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println("注释行： " + cntNode); System.out.println("空行： " + cntSpace); System.out.println("代码行： " + cntCode); System.out.println("总行： " + (cntNode+cntSpace+cntCode)); } private static void pattern(String line) { // TODO Auto-generated method stub String regxNodeBegin = "\\s*/\\*.*"; String regxNodeEnd = ".*\\*/\\s*"; String regx = "//.*"; String regxSpace = "\\s*"; if(line.matches(regxNodeBegin) && line.matches(regxNodeEnd)){ ++cntNode; return ; } if(line.matches(regxNodeBegin)){ ++cntNode; flagNode = true; } else if(line.matches(regxNodeEnd)){ ++cntNode; flagNode = false; } else if(line.matches(regxSpace)) ++cntSpace; else if(line.matches(regx)) ++cntNode; else if(flagNode) ++cntNode; else ++cntCode; }}