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This article mainly introduces java how to achieve code statistics Mini Program, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

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Package rexExp; import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException; public class CodeCounter {/ / three static variables store rows static long normalLines = 0; static long commentLines = 0; static long whileLines = 0; public static void main (String [] args) {String pathname = "E:\ testeclipseworkspace\\ JavaLearn\\ src\ collection"; File file = new File (pathname); File [] codeFiles = file.listFiles () / / find all subfiles under the folder / / files must end with .java, use regular expressions to validate for (File child: codeFiles) {if (child.getName (). Matches (". *\\ .java $") {parse (child);}} System.out.println ("normalLines:" + normalLines); System.out.println ("commentLines:" + commentLines); System.out.println ("whileLines:" + whileLines) } private static void parse (File file) {BufferedReader bReader = null; boolean comment = false; try {bReader = new BufferedReader (new FileReader (file)); / / read each line String line= ""; while ((line=bReader.readLine ())! = null) {line= line.trim (); / / remove leading and trailing spaces / / count the number of blank lines if (line.matches ("^ [\ slots & [^\ n]] * $")) {whileLines++ } / / count the number of lines of comments else if (line.startsWith ("/ *") & &! line.endsWith ("* /")) {commentLines++; / / if "/ *" is encountered, the comment starts with 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 (bReader! = null) {try {bReader.close ();} catch (IOException e) {e.printStackTrace () }}} Thank you for reading this article carefully. I hope the article "how to implement Code Statistics Mini Program in java" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support and follow the industry information channel. More related knowledge is waiting for you to learn!

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