Java Tutorial: Scanner Example

import java.util.Scanner;

/**

*

* @author paiman

*/

public class HelloScanner {

public static void main(String[] args) {

Scanner input = new Scanner( System.in );

System.out.print ("What is your name? ");

String name = input.nextLine();

System.out.println("Hello, "+name+"! Welcome to my blog :)");

}

}

import java.util.Scanner;

/**

*

* @author paiman

*/

public class RectangleWide {

public static void main(String[] args) {

Scanner input = new Scanner( System.in );

System.out.print ("Input long: ");

int l = input.nextInt();

System.out.print ("Input width: ");

int w = input.nextInt();

System.out.println("Rectangle wide: "+l*w);

}

}

import java.util.Scanner;

/**

*

* @author paiman

*/

public class CircumferenceOfACircle {

public static void main(String[] args) {

Scanner input = new Scanner( System.in );

System.out.print ("Input radius: ");

double r = input.nextDouble();

double pi = 3.142857143;

double circumference = 2*pi*r;

System.out.println("The circumference of a Circle with radius "+r+" is "+circumference);

}

}