// ************************************************************* 
// Distance.java 
// 
// Computes the distance between two points 
// ************************************************************* 
import java.util.Scanner; 
public class Distance 
{ 
 public static void main (String[] args) 
 { 
 double x1, y1, x2, y2; // coordinates of two points 
 double distance; // distance between the points 
 Scanner scan = new Scanner(System.in); 
 // Read in the two points 
 System.out.print ("Enter the coordinates of the first point " + 
 "(put a space between them): "); 
 x1 = scan.nextDouble(); 
 y1 = scan.nextDouble(); 
 System.out.print ("Enter the coordinates of the second point: "); 
 x2 = scan.nextDouble(); 
 y2 = scan.nextDouble(); 
 // Compute the distance 
 // Print out the answer 
 distance = Math.sqrt(Math.pow(x1-x2,2)+Math.pow(y1-y2,2));
 System.out.println("Distance between them: "+distance); 
 } 
}