// Compute the distance between 2 points given their (x,y) coordinates
import java.util.Scanner;

public class EuclideanDistance
{
  public static void main(String[] args)
  {
    Scanner input = new Scanner(System.in);
    System.out.print("Enter x1: ");
    double x1 = input.nextDouble();
    
    System.out.print("Enter y1: ");
    double y1 = input.nextDouble();
    
    System.out.print("Enter x2: ");
    double x2 = input.nextDouble();
    
    System.out.print("Enter y2: ");
    double y2 = input.nextDouble();
    
    double distance = Math.sqrt( (x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
    System.out.print("The distance is: " + distance);
  }
}