How to calculate the area of a rectangle

Do you need help with your Java programming?

Click here for instant help with your Java code.

This example shows how to calculate the area of a rectangle.
First we ask the user for the width and height of the rectangle.
The input is parsed to integer values and finally we calculate the area of the rectangle using the correct formula.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
*
* @author javadb.com
*/
public class Main {

    /**
     * Calculates the rectangle area
     */
    public static void main(String[] args) {

        int width = 0;
        int length = 0;

        BufferedReader reader = null;
        try {

            reader = new BufferedReader(new InputStreamReader(System.in));

            //get the width and height of the rectangle from the user
            System.out.println("Please enter length of a rectangle");
            length = Integer.parseInt(reader.readLine());

            System.out.println("Please enter width of a rectangle");
            width = Integer.parseInt(reader.readLine());

        } catch (NumberFormatException nfe) {
            nfe.printStackTrace();
            System.exit(0);
        } catch (IOException ioe) {
            ioe.printStackTrace();
            System.exit(0);
        } finally {
            try {
                reader.close();
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }

        int area = length * width;

        System.out.println("The rectangle area is " + area);

    }
}

Do you know your Java?
Take a Ten-Question-Java-Quiz!

Search for code examples on this site

Need help with your Java code? It's secure and confidential.

This is how it works:

Send a detailed description of what you need help with, the more details the better. Also provide a deadline for when it has to be finished. More time means better chance of putting your request into the schedule.

If the request is serious you will shortly receive an email with the price, to which you have to respond if you accept.

Once you have accepted, the work will begin on developing your code by an experienced Java developer. When the code is finished a link to a secure payment will be sent to you.

The source code is then sent to you once the payment is completed.

IMPORTANT! The request needs to be very detailed, else it may be ignored.

Write your detailed request here:

E-mail address: