Question

Java: Distance calc. This question is fairly straightforward. Design implement (source code) a program to compute the distance between 2 points. The program prompts the user to enter 2 points (X1, Y1) and (X2, Y2). The distance between 2 points formula is: Square_Root [(X2 – X1)^2 + (Y2 – Y1)^2] Document your code, properly label the input prompts, and organize the outputs as shown in the following sample runs. Note: for C++, #include and then call sqrt(). For Java, you’ll use Math.sqrt() and for C# it’s Math.Sqrt(). See the short appendix below for the general form.

Sample run 1: Entered X1: 1.5 Entered Y1: -3.4 Entered X2: 4 Entered Y2: 5 Distance: 8.764131445842194

Sample run 2: Entered X1: -5.5 Entered Y1: -8.8 Entered X2: 25 Entered Y2: 4.5 Distance: 33.27371334852784

Sample run 3: Entered X1: 2 Entered Y1: 2 Entered X2: 10 Entered Y2: 10 Distance: 11.313708498984761  

Answer 1

//Distance2.java
import java.util.Scanner;
public class Distance2 {
    public static void main(String args[]){
        double x1,x2,y1,y2, distance;
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter X1: ");
        x1 = scanner.nextDouble();
        System.out.print("Enter Y1: ");
        y1 = scanner.nextDouble();
        System.out.print("Enter X2: ");
        x2 = scanner.nextDouble();
        System.out.print("Enter Y2: ");
        y2 = scanner.nextDouble();
        distance = Math.pow(Math.pow(x2-x1,2)+Math.pow(y2-y1,2),0.5);
        System.out.println("Distance: "+ distance);
    }
}