Introduction to File Handling

Which of the following activities can be done using File Handling in Java?

• creating a file

• reading from a file

• deleting a file

Which method from the ‘File’ class is used to create a new file?

• File()

• createNewFile()

• copyFile()

• delete()

Which class in Java is used to write data to a file?

• File class

• FileWriter class

•  FileReader class

•  Scanner class

What will happen if the todo_list.txt does not exist, and we run the following code?

FileWriter myWriter = new FileWriter("todo_list.txt");

myWriter.write("1. Complete Math homework");

• It will result in an Error

• The FileWriter will create a new file with the name todo_list.txt, and then write the data in it

• The FileWriter will write the data in a random file

• none of the mentioned

Which method do we use to close a FileWriter object filewriter, so that the changes are saved?

• filewriter.close()

• filewriter.open()

• filewriter.copy()

• none of the mentioned