How can I read input from the console using the Scanner class in Java?

Question

How could I read input from the console using the Scanner class? Something like this:

System.out.println(\"Enter your username: \");
Scanner = i         


        

Answer 1

You can make a simple program to ask for the user's name and print whatever the reply use inputs.

Or ask the user to enter two numbers and you can add, multiply, subtract, or divide those numbers and print the answers for user inputs just like the behavior of a calculator.

So there you need the Scanner class. You have to import java.util.Scanner;, and in the code you need to use:

Scanner input = new Scanner(System.in);

input is a variable name.

Scanner input = new Scanner(System.in);

System.out.println("Please enter your name: ");
s = input.next(); // Getting a String value

System.out.println("Please enter your age: ");
i = input.nextInt(); // Getting an integer

System.out.println("Please enter your salary: ");
d = input.nextDouble(); // Getting a double

See how this differs: input.next();, i = input.nextInt();, d = input.nextDouble();

According to a String, int and a double varies the same way for the rest. Don't forget the import statement at the top of your code.