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Java Tutorial : Java IO (Scanner class)

Java Tutorial : Java IO (Scanner class)

Java Tutorial : Java IO (Scanner class)

Java Tutorial : Java IO (Scanner class)

Java Tutorial : Java IO (Scanner class)

Java Tutorial : Java IO (Scanner class)

Java Tutorial : Java IO (Scanner class)

Java Tutorial : Java IO (Scanner class)

ScannerDemo.java

import java.util.Scanner;

/*
 *  Java Scanner class which reads the int, 
 *  string and double value as an input:
 */
public class ScannerDemo
{

    public static void main(String[] args)
    {
        Scanner scanner = null;
        try
        {
            scanner = new Scanner(System.in);

            System.out.print("Enter your Id: ");
            int rollno = scanner.nextInt();

            System.out.print("Enter your Name: ");
            String name = scanner.next();

            System.out.print("Enter your Weight: ");
            double weight = scanner.nextDouble();

            System.out.println("Id:" + rollno + ", Name:" + name
                    + ", Weight:" + weight);
        }
        finally
        {
            if (scanner != null)
            {
                scanner.close();
            }
        }
    }
}

Enter your Id: 54
Enter your Name: peter
Enter your Weight: 67.89
Id:54, Name:peter, Weight:67.89