What is RandomAccessFile used for?

RandomAccessFile in Java is a class that allows data to be read from and written to at any location in the file. In other simple words, RandomAccessFile class allows creating files that can be used for reading and writing data with random access.

What is the difference between the file and RandomAccessFile classes?

File is an abstract representation of a file/directory which may or may not even exist. It doesn’t consume any resources, so you can store them as much as you want. RandomAccessFile is for actual file access (reading, seeking, writing), so you don’t need it here.

What do you know about RandomAccessFile?

A random access file behaves like a large array of bytes. There is a cursor implied to the array called file pointer, by moving the cursor we do the read write operations. If end-of-file is reached before the desired number of byte has been read than EOFException is thrown. It is a type of IOException.

Which method in RandomAccessFile is used to move the cursor to the desired location?

Using file pointer, we can read or write data from random access file at any position. To get the current file pointer, you can call getFilePointer() method and to set the file pointer index, you can call seek(int i) method.

How do I turn off RandomAccessFile?

close() method closes this random access file stream and releases any system resources associated with the stream.

How do I write a string in RandomAccessFile?

RandomAccessFile. writeChars(String s) method writes a string to the file as a sequence of characters. Each character is written to the data output stream as if by the writeChar method. The write starts at the current position of the file pointer.

Which interface will be used for implementing a RandomAccessFile class?

io. RandomAccessFile Class provides a way to random access files using reading and writing operations. It works like an array of byte storted in the File.

Which interface will be used for implementing a RandomAccessFile class Mcq?

The RandomAccessFile class implements the ___and ___ interfaces. Ans. DataInput, DataOutput.

How do I write in RandomAccessFile?

Write Array of Bytes to a RandomAccessFile Writing to a RandomAccessFile can be done using one it its many write() methods. Here is a simple example: RandomAccessFile file = new RandomAccessFile(“c:\\data\\file. txt”, “rw”); byte[] bytes = “Hello World”.

Which method of RandomAccessFile class reads a line from the file and returns it as a String?

The java. io. RandomAccessFile. readLine() method reads the next line of text from this file.