读取某个目录下所有JAVA文件的代码行数

淡淡的烟草味﹌ 2023-10-01 13:22 22阅读 0赞

package cn;
    
    import java.io.BufferedReader;
    import java.io.File;
    import java.io.FileNotFoundException;
    import java.io.FileReader;
    
    /**
     * @author yeqv
     * @program A2
     * @Classname test
     * @Date 2022/1/16 15:20
     * @Email w16638771062@163.com
     */
    public class test {
        
        static int num = 0;
        static int rows = 0;
        static int space = 0;
    
        public static void main(String[] args) throws FileNotFoundException {
        
            String path = "D:\\idea\\ja";
            count(new File("D:\\idea\\ja"));
            System.out.printf("%s 共有%d个java程序文件%n", "d:/eclipse- workspace", num);
            System.out.printf("共 %d 行代码%n", rows);
            System.out.printf("共 %d 空行代码%n", space);
        }
    
        public static void count(File dir) throws FileNotFoundException {
        
            if (dir.isDirectory()) {
        
                File[] f = dir.listFiles();
                for (File t : f) {
        
                    if (t.isDirectory()) count(t);
                    if (t.isFile() && t.getName().endsWith(".java")) {
        
                        ++num;
                        BufferedReader br = new BufferedReader(new FileReader(t));
                        rows += br.lines().filter(e -> e.trim().length() > 0).count();
                        BufferedReader br2 = new BufferedReader(new FileReader(t));
                        space += br2.lines().filter(e -> e.trim().length() == 0).count();
                    }
                }
            }
            if (dir.isFile() && dir.getName().endsWith(".rar")) {
        
                ++num;
                BufferedReader br = new BufferedReader(new FileReader(dir));
    
                rows += br.lines().count();
                BufferedReader br2 = new BufferedReader(new FileReader(dir));
                space += br2.lines().filter(e -> e.trim().length() == 0).count();
            }
        }
    
    
    }