The exists() function is a part of the File class in Java. This function determines whether the is a file or directory denoted by the abstract filename exists or not. The function returns true if the abstract file path exists or else returns false.
Syntax:
public boolean exists()
file.exists()
Parameters: This method does not accept any parameter.
Return Value: The function returns the boolean value if the file denoted by the abstract filename exists or not.
Exception: This method throws Security Exception if the write access to the file is denied
Implementation: Consider file on the local directory on a system where local directory be as below provided.
“F:\\program.txt”
Example 1:
Java
// Java Program to Illustrate exists() method of File Class// Importing input output classesimport java.io.*;// Main classpublic class GFG { // Main driver method public static void main(String args[]) { // Getting the file by creating object of File class File f = new File("F:\\program.txt"); // Checking if the specified file exists or not if (f.exists()) // Show if the file exists System.out.println("Exists"); else // Show if the file does not exists System.out.println("Does not Exists"); }} |
Output:
Exists
Now let us consider the use-case where file is writable (“F:\\program1.txt”)
Example 2:
Java
// Java program to demonstrate// exists() method of File Class// Importing input output classesimport java.io.*;// Main classpublic class GFG { // Main driver method public static void main(String args[]) { // Getting the file File f = new File("F:\\program1.txt"); // Checking if the specified file // exists or not if (f.exists()) // Print message if it exists System.out.println("Exists"); else // Print message if it does not exists System.out.println("Does not Exists"); }} |
Output:
Does not Exists
