简单初级代码行数统计

package test;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader;

public class Test {
	private static int sum = 0;
	private static int mid = 0;
	private static int total = 0;
	private static int countCondition = 1;
	public static void main(String[] args) throws Exception{
		//File f = new File("E:\\A.java");
		File f = new File("E:\\a");
		if(f.getPath().endsWith(".java")){
			System.out.println("代码一共:"+number(f)+"行");
		}else{
			listFile(f);
			System.out.println("代码一共:"+total+"行");
		}
	}
	public static void listFile(File file) throws Exception{
		if(file.isDirectory()){
			File list[] = file.listFiles();
			for(File ff:list){
				listFile(ff);
				if(ff.getPath().endsWith(".java")){
					sum+=number(ff);
					mid = 0;
					total+=sum;
					sum=0;
				}
			}
		}
	}
	public static int number(File file) throws Exception{
		InputStream is = new FileInputStream(file);
		LineNumberReader lnr = new LineNumberReader(new InputStreamReader(is,"UTF-8"));
		String line = null;
		int count = 0; 
		while((line=lnr.readLine())!=null){
			if(condition(line)){
				count++;
				if(countCondition>1){
					countCondition++;
				}
			}
		}
		return count - mid;
	}
	public static boolean condition(String line){
		boolean flag = false;
		if(line.trim().equals("")){
			//flag = false;
		}else if(line.trim().startsWith("/*")&&line.trim().endsWith("*/")){
			//flag = false;
		}else if(line.trim().startsWith("//")){
			//flag = false;
		}else if(line.trim().startsWith("/*")){
			countCondition++;
			flag = true;
		}else if(line.trim().endsWith("*/")){
			mid += (countCondition-1);
			countCondition = 1;
			flag = true;
		}else{
			flag = true;
		}
		return flag;
	}
}