Reading Input in Java Using Scanner

The Java example shows how to read a value from a console.

import java.util.Scanner;

public class ReadLine {

    public static void main(String[] args) {
        
        System.out.print("Write your name:");

        Scanner sc = new Scanner(System.in);
        String name = sc.nextLine();

        System.out.println("Hello " + name);
    }
}

A prompt is shown on the terminal window. The user writes his name on the terminal and the value is read and printed back to the terminal.

Output:

java com.sourcecodeexamples.ReadLine 
Write your name: Ramesh
Hello Ramesh

In the example above, we used the nextLine() method, which is used to read Strings. To read other types, look at below Scanner class methods:

• nextBoolean() - Reads a boolean value from the user
• nextByte() - Reads a byte value from the user
• nextDouble() - Reads a double value from the user
• nextFloat() - Reads a float value from the user
• nextInt() - Reads a int value from the user
• nextLine() - Reads a String value from the user
• nextLong() - Reads a long value from the user
• nextShort() - Reads a short value from the user