Which method is used to create a file in Java?

Java MCQ: Which method is used to create a file in Java?

Answer:

Explanation:

The createNewFile() method in Java is used to create a new file. It is a method of the File class, which is part of the java.io package. When you call createNewFile(), it returns true if the file was created successfully, or false if the file already exists. This method throws an IOException if an I/O error occurs.

Here’s an example of how to use createNewFile():

import java.io.File;
import java.io.IOException;

public class CreateFileExample {
    public static void main(String[] args) {
        File file = new File("example.txt");
        try {
            if (file.createNewFile()) {
                System.out.println("File created: " + file.getName());
            } else {
                System.out.println("File already exists.");
            }
        } catch (IOException e) {
            System.out.println("An error occurred.");
            e.printStackTrace();
        }
    }
}

In this example, createNewFile() attempts to create a file named example.txt. If the file does not exist, it will be created, and a success message will be printed. If the file already exists, a message indicating this will be printed instead.

This method is essential for file handling in Java, particularly when you need to ensure that a file is created before writing to it.

Reference links:

https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html