Maruthi Krishna has Published 951 Articles

How to iterate the values of an enum using a for loop in Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:26:53

327 Views

Enumerations in Java represents a group of named constants, you can create an enumeration using the following syntax −enum Days {    SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY }You can retrieve the contents of an enum using the values() method. This method returns an array containing all the values. ... Read More

How to search a directory with file extensions in Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:21:27

1K+ Views

Following example prints the files in a directory based on the extensions −Exampleimport java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.stream.Stream; public class Demo {    public static void main(String[] args) throws IOException {       Stream path = Files.walk(Paths.get("D:\ExampleDirectory"));       System.out.println("List of PDF files:");   ... Read More

How to list the hidden files in a directory in Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:21:14

596 Views

The ListFiles() method returns an array holding the objects (abstract paths) of all the files (and directories) in the path represented by the current (File) object.The File Filter interface is filter for the path names you can pass this as a parameter to the listFiles() method. This method filters the ... Read More

How to get the names of the empty directories in a directory in Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:20:45

383 Views

The ListFiles() method returns an array holding the objects (abstract paths) of all the files (and directories) in the path represented by the current (File) object.The File Filter interface is filter for the path names you can pass this as a parameter to the listFiles() method. This method filters the ... Read More

How to create object arrays Java? What are their disadvantages

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:15:48

92 Views

Array is a container which can hold a fix number of items and these items should be of the same type. Most of the data structures make use of arrays to implement their algorithms. Following are the important terms to understand the concept of Array.Element: Each item stored in an ... Read More

How to get the directories (only) from a folder using Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:15:36

829 Views

The ListFiles() method returns an array holding the objects (abstract paths) of all the files (and directories) in the path represented by the current (File) object.The File Filter interface is filter for the path names you can pass this as a parameter to the listFiles() method. This method filters the ... Read More

How to list all files (only) from a directory using Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:13:47

2K+ Views

The ListFiles() method returns an array holding the objects (abstract paths) of all the files (and directories) in the path represented by the current (File) object.The File Filter interface is filter for the path names you can pass this as a parameter to the listFiles() method. This method filters the ... Read More

How to read all files in a folder to a single file using Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:10:12

7K+ Views

The listFiles() method of the File class returns an array holding the objects (abstract paths) of all the files (and directories) in the path represented by the current (File) object.To read the contents of all the files in a folder into a single file −Create a file object by passing ... Read More

How to search a file in a directory in java

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:09:15

3K+ Views

The List() method of the File class returns a String array containing the names of all the files and directories in the path represented by the current (File) object.In order to search for a file you need to compare the name of each file in the directory to the name ... Read More

How to get the list of jpg files in a directory in Java?

Maruthi Krishna

Maruthi Krishna

Updated on 08-Feb-2021 11:06:23

922 Views

The String[] list(FilenameFilter filter) method of a File class returns a String array containing the names of all the files and directories in the path represented by the current (File) object. But the retuned array contains the filenames which are filtered based on the specified filter. The FilenameFilter is an interface in ... Read More

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