Often, when transferring files from the camera folder to a workspace where we would like to analyze the pictures, it becomes difficult to deal with long file and type them out again and again when testing them through a code. Also, the number of files might be too large to manually rename each one of them. Hence, it becomes a necessity to automate the renaming process.
Examples:
Input : Read 50 files from the folder "C:\Users\Anannya Uberoi\Desktop\myfolder": Snapshot 1 (12-05-2017 11-57).png Snapshot 2 (12-05-2017 11-57).png Snapshot 3 (12-05-2017 11-57).png Snapshot 4 (12-05-2017 11-57).png and so on. Output :Renamed to 1.png 2.png 3.png 4.png and so on.
// Java program to illustrate// how to rename Multiple Files// together using single programimport java.io.File;import java.io.IOException; public class rename{ public static void main(String[] argv) throws IOException { // Path of folder where files are located String folder_path = "C:\\Users\\Anannya Uberoi\\Desktop\\myfolder"; // creating new folder File myfolder = new File(folder_path); File[] file_array = myfolder.listFiles(); for (int i = 0; i < file_array.length; i++) { if (file_array[i].isFile()) { File myfile = new File(folder_path + "\\" + file_array[i].getName()); String long_file_name = file_array[i].getName(); String[] tokens = long_file_name.split("\\s"); String new_file_name = tokens[1]; System.out.println(long_file_name); System.out.print(new_file_name); // file name format: "Snapshot 11 (12-05-2017 11-57).png" // To Shorten it to "11.png", get the substring which // starts after the first space character in the long // _file_name. myfile.renameTo(new File(folder_path + "\\" + new_file_name + ".png")); } } }} |
Output:
The files get renamed successfully.
Note: A double slash (\\) is required since one of the backslash (\) acts as an escape character and the other backslash (\) denotes directory change.
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