The createNewFile() function is a part of File class in Java . This function creates new empty file. The function returns true if the abstract file path does not exist and a new file is created. It returns false if the filename already exists.
Function signature:
public boolean createNewFile()
Syntax:
boolean var = file.createNewFile();
Parameters: This method does not accept any parameter.
Return Type: The function returns boolean data type representing whether the new file is created or not.
Exception: This method throws following exceptions:
- IO Exception: if input output error occurs
- Security Exception: if the write access to the file is denied
Below programs illustrates the use of createNewFile() function:
Example 1: The file “F:\\program1.txt” does not exist
// Java program to demonstrate// createNewFile() method of File Class import java.io.*; public class solution { public static void main(String args[]) { try { // Get the file File f = new File("F:\\program.txt"); // Create new file // if it does not exist if (f.createNewFile()) System.out.println("File created"); else System.out.println("File already exists"); } catch (Exception e) { System.err.println(e); } }} |
Output:
File created
Example 2: The file “F:\\program.txt” is a existing file in F: Directory.
// Java program to demonstrate// createNewFile() method of File Class import java.io.*; public class solution { public static void main(String args[]) { try { // Get the file File f = new File("F:\\program1.txt"); // Create new file // if it does not exist if (f.createNewFile()) System.out.println("File created"); else System.out.println("File already exists"); } catch (Exception e) { System.err.println(e); } }} |
Output:
File already exists
Note: The programs might not run in an online IDE. Please use an offline IDE and set the path of the file.
Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.
