Answered Essay: In a new file write a program that prompts the users for four integer values: x1, y1, x2, y2 tha

Java:

In a new file write a program that prompts the users for four integer values: x1, y1, x2, y2 that represent (x,y) coordinates for two points on the plane p1 and p2 respectively. Using the Point class from Java Class Library. (you need to look up the documentation) create two Point objects p1 and p2 with your input data, then print the data for both Point objects utilizing its toString method.

Expert Answer

 

Explanation::

  • Code in Java is provided below.
  • Class name is MyPoints. So save the file as MyPoints.java.
  • Please read all the comments provided in the code for better understanding of the logic applied.
  • Every step is explained well.
  • Output is provided below the code as screenshots.

Code in java::

import java.util.Scanner;

import java.awt.Point;

public class MyPoints{

public static void main(String[] args){

/*

* Using scanner class to enter inputs from keyboard.

*/

Scanner sc=new Scanner(System.in);

/*

* Four integer variables are declared named x1,y1,x2 and y2

* respectively.

* Where (x1,y1) represent point 1 and (x2,y2) represent point 2.

*/

int x1,y1,x2,y2;

/*

* Below we prompt user to enter coordinates of point p1 first

* i.e x1 and y1.

*/

System.out.print(“Enter x1 and y1 ::”);

x1=sc.nextInt();

y1=sc.nextInt();

/*

* Below we prompt user to enter coordinates of point p2

* i.e x2 and y2.

*/

System.out.print(“Enter x2 and y2 ::”);

x2=sc.nextInt();

y2=sc.nextInt();

/*

* Now it’s time to create two points named p1 and p2

* with coordinates as p1(x1,y1) and p2(x2,y2).

* We create two objects of class Point named p1 and p2 respectively.

*/

/*

* For point p1 we send two arguments x1 and y1 as coordinates of the point.

* Constructor of class Point initializes coordinates as x1 and y1.

*/

Point p1=new Point(x1,y1);

/*

* For point p2 we send two arguments x2 and y2 as coordinates of the point.

* Constructor of class Point initializes coordinates as x2 and y2.

*/

Point p2=new Point(x2,y2);

/*

* Below we print points p1 and p2 using toString() function.

* To print the point objects p1 and p2 using toString() function,

* there is no need to call toString() manually.

* We just need to print p1 and p2 without any function call.

* toString() function is called by default here.

* Still for p2 I have used toString() to show how to call toString().

*/

System.out.println(“nPoint p1 coordinates are ::”+p1);

System.out.println(“Point p2 coordinates are ::”+p2.toString());

}// main ends here

}//class ends here

Output::

Test case 1::

Test Case 2::

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