Case - traversing the directory (file class & recursive call)

package it.com;

import java.io.File;

public class DiGuiDemo03 {
    public static void main(String[] args) {

        // Create a... Based on the given path File object 
        File srcFile = new File("E:\\itcast");

        // Calling method 
       getAllFilePath(srcFile);
    }
    // Define a method , Used to get all the contents in a given directory , Parameters are created in the first step File object 
    public static void getAllFilePath(File srcFile){

        // Get the given File Of all files or directories in the directory File Array 
        File[] fileArray = srcFile.listFiles();

        // Traversing this File Array , Get every one File object 
        if(fileArray !=null){

            for (File file:fileArray) {
                // Judge that File Is the object a directory 
                if (file.isDirectory()){
                    // yes , Then recursively call 
                    getAllFilePath(file);
                }else {
                    // No , Get the absolute path output on the console 
                 System.out.println(file.getAbsolutePath());
                }
            }
        }
    }
}