readline

Number of Lines in File

Sometimes, in coding, it is required to know the number of lines existing in a file programmatically. There is no direct way (a predefined method) to find out in Java. To do the job, the help of BufferedReader's readLine() method is taken. While reading each line, the counter is incremented;…

Keyboard Input BufferedReader Java

The previous program (KeyboardReading1.java) of reading keyboard input, using DataInputStream, raises a deprecation warning. To overcome this, in the following program, the readLine() method of BufferedReader is used. Example on Keyboard Input BufferedReader Java The following program takes input from keyboard to fill the array elements. The elements and their…

Keyboard Input DataInputStream

In keyboard reading, three programs are given using DataInputStream, BufferedReader and Scanner. Of all, using java.util.Scanner is the easier and includes many methods to check the input data is valid to read. Example on Keyboard Input DataInputStream Following program uses readLine() method of DataInputStream to read data from the keyboard.…