Geometry: Distance Of Two Points Calculator

The program below is the solution to Liang’s Introduction to Java Programming (9th Edition) Chapter 2 Exercise 2.19.

Question: Write a program that prompts the user to enter two points (x1, y1) and (x2, y2) and displays their distance between them.


/**<br /> *<br /> * @Author: Aghatise Osazuwa<br /> * Website: www.cscprogrammingtutorials.com<br /> *<br /> * Exercise 2.19 - Geometry: distance of two points<br /> *<br /> */ <br /><br />import java.util.Scanner;<br /><br />public class Ex02_19 {<br /><br />    public static void main(String[] args) {<br />        <br />        // Display Program Information<br />        System.out.println("This Program Calculates The Distance Between Two "<br />                + "Points In Geometry.n");<br /><br />        // create Scanner <br />        Scanner input = new Scanner(System.in);<br /><br />        // prompt user to enter details<br />        System.out.println("Enter x1 and y1: ");<br />        double x1 = input.nextDouble();<br />        double y1 = input.nextDouble();<br />        System.out.println("Enter x2 and y2: ");<br />        double x2 = input.nextDouble();<br />        double y2 = input.nextDouble();<br /><br />        // calculate distance<br />        double distance = Math.pow(((x2 - x1) * (x2 - x1)) + ((y2 - y1) * (y2 - y1)), 0.5);<br /><br />        //display the result<br />        System.out.println("The distance between the two points is " + distance + "n");<br />    }<br />}<br />

/** * * @Author: Aghatise Osazuwa * Website: www.cscprogrammingtutorials.com * * Exercise 2.19 - Geometry: distance of two points * */ import java.util.Scanner; public class Ex02_19 { public static void main(String[] args) { // Display Program Information System.out.println("This Program Calculates The Distance Between Two " + "Points In Geometry.n"); // create Scanner Scanner input = new Scanner(System.in); // prompt user to enter details System.out.println("Enter x1 and y1: "); double x1 = input.nextDouble(); double y1 = input.nextDouble(); System.out.println("Enter x2 and y2: "); double x2 = input.nextDouble(); double y2 = input.nextDouble(); // calculate distance double distance = Math.pow(((x2 - x1) * (x2 - x1)) + ((y2 - y1) * (y2 - y1)), 0.5); //display the result System.out.println("The distance between the two points is " + distance + "n"); } }