计算编写代码行数

计算编写代码行数

大家算算自己的吧 :-)

package my.code.counter;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.Scanner;

public class CodeCounter {

static long normalLines = 0;
static long commentLines = 0;
static long whiteLines = 0;

public static void main(String[] args) {
int x;
Scanner scan = new Scanner(System.in);
System.out.println("自我感觉写了多少代码？");
x = scan.nextInt();
System.out.println("实际上（~-~#）：");
File f = new File("G:\\code\\");//代码所在的位置
File[] codeFiles = f.listFiles();
for(File child : codeFiles){
if(child.getName().matches(".*\\.java$")) {
parse(child);
}
}

System.out.println("代码:" + normalLines);
System.out.println("注释:" + commentLines);
System.out.println("空白:" + whiteLines);
DecimalFormat fmt = new DecimalFormat("0.##");//保留2为小数
System.out.println("实际和感觉的比例：" + fmt.format((double)normalLines/x*100) + "%");
System.out.println("你已经成为" + fmt.format((double)normalLines/100000*100) + "% 的高手(10W行代码)");

}

private static void parse(File f) {
BufferedReader br = null;
boolean comment = false;
try {
br = new BufferedReader(new FileReader(f));
String line = "";
while((line = br.readLine()) != null) {//判断是每行是什么(代码，注释，空白)
line = line.trim();
if(line.matches("^[\\s&&[^\\n]]*$")) {
whiteLines ++;
} else if (line.startsWith("/*") && !line.endsWith("*/")) {
commentLines ++;
comment = true;
} else if (line.startsWith("/*") && line.endsWith("*/")) {
commentLines ++;
} else if (true == comment) {
commentLines ++;
if(line.endsWith("*/")) {
comment = false;
}
} else if (line.startsWith("//")) {
commentLines ++;
} else {
normalLines ++;
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if(br != null) {
try {
br.close();
br = null;
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}