Apr 20, 2013 · A user can input data at the time of execution of the program without using a scanner class, and this can be done by using the following program. class Demo { public static void main(String ar[]) { int ab = Integer.parseInt(ar[0]); int ba = Integer.parseInt(ar[1]); int res = ab+ba; System.out.print(res); } }

Jan 14, 2025 · In Java, there are four different ways to read input from the user in the command line environment (console). 1. Using Buffered Reader Class. Buffered Reader Class is the classical method to take input, Introduced in JDK 1.0.

Jan 14, 2020 · So, for example, if the user has to choose between 1, 2, 3, 4, or 5 for input, when the user presses '2', for example, the program reads this input instantly without them having to press enter. Is there any way to do this?

Scanner is usually used to easily grab user input from the console. This is not used for mouse/key inputs. If using Swing, you could add a KeyListener and MouseListener to your panel, which will trigger event methods containing code that you write.

Sep 29, 2022 · Without the Scanner class, reading user input with System.in is more complicated, and instead uses the InputStreamReader to convert data from bytes to characters. To do this, you must pass Java's System.in to the constructor of an InputStreamReader, and then pass that to the BufferedReader.

Jun 19, 2023 · In Java, you can take input from the user without using the Scanner class by using the BufferedReader class, which reads text from an input stream efficiently. You create a BufferedReader instance, read user input with the readLine() method, and convert it to the desired type if necessary.

The Scanner class is used to get user input, and it is found in the java.util package. To use the Scanner class, create an object of the class and use any of the available methods found in the Scanner class documentation.

Perhaps you don't want to use the Scanner class? In that case, there are many other classes that can help you take the user input: https://stackoverflow.com/a/19532416. use like this system.out.println ("enter any no"); java.util.Scanner s=new java.util.Scanner (System.in); int x=s.nextInt (); You could use JOptionPane.showInputDialog ("Message");

Jul 27, 2019 · In this article, we discuss three different ways for reading input from the user in the command line environment (also known as the “console”). Each way is fairly easy to use and also has its own advantages and drawbacks. 1. Reading User's Input using BufferedReader class.

There are mainly five different ways to take input from user in java using keyboard. 1. Command Line Arguments. 2. BufferedReader and InputStreamReader Class. 3. DataInputStream Class. 4. Console Class. 5. Scanner Class . Below I have shared example for each of them. How to Take Input from User in Java Command Line Arguments