What are the different ways of accepting input through the user in Java

Answer 1

You can use any of the following ways based on the requirements.

• Scanner class

import java.util.Scanner;
Scanner scan = new Scanner(System.in);
String s = scan.next();
int i = scan.nextInt();

• BufferedReader and InputStreamReader classes

import java.io.BufferedReader;
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String s = br.readLine();
int i = Integer.parseInt(br.readLine());

• DataInputStream class

import java.io.DataInputStream;
DataInputStream dis = new DataInputStream(System.in);
int i = dis.readInt();

• The readLine method from the DataInputStream class has been deprecated. To get String value, you should use the previous solution with BufferedReader.

• Console class

import java.io.Console;
Console console = System.console();
String s = console.readLine();
int i = Integer.parseInt(console.readLine());

Apparently, this method does not work well in some IDEs.

Answer 2

Could also use swing.
Such as JOptionPane.

import javax.swing.JOptionPane;

String input = JOptionPane.showInputDialog(null, "User Input");

*Won't work on CodePlayground*