File createNewFile() method in Java with Examples
Last Updated :
12 May, 2020
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
import java.io.*;
public class solution {
public static void main(String args[])
{
try {
File f = new File( "F:\\program.txt" );
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.
import java.io.*;
public class solution {
public static void main(String args[])
{
try {
File f = new File( "F:\\program1.txt" );
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.
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