[Subject: Java Programming] Create a Java Program called Point that does the fol

Question

[Subject: Java Programming] Create a Java Program called Point that does the following. -the point class has two instance variables x and y. Both instance variables will have type double. Both instance variables will be private. -create two constructors: a default no argument constructor and a constructor that takes two integers as arguments(representing x and y coordinates). -create accessors(getters) and mutators(setters) methods for each instance variable. -implement the following instance methods: public double distFromOrg() public double DistFromPoint(Point P) public int whatQuadrant() public double slope(Point P)
Finally in the main method(in the Point class) do the following: -create 3 point objects values of x and y coordinates can be defined by YOU. -print the three point objects to the console showing their x and y coordinates. -compute the distance between two point objects. Which two point objects is up to you. Print the distance to the console. -compute the distance between a Point object and the origin. Which Point object you used is up to you. Print the distance to the console. -compute the slope of a line passing through two point objects. Which two point objects is up to you. Print the slope to the console. -determine which quadrant all three point objects are in. Print the quadrants to the console.
Example Output: Point 1 x-coord: 3.00 y-coord: 2.00 Point 2 x-coord: 2.00 y-coord: -5.00 Point 3 x-coord: -1.00 y-coord: 2.00 Distance between Point 1 and Point 2: 7.0710678118654755 Distance between Point 3 and the origin(0,0): 2.23606797749979 Slope of a line passing through Point 1 and Point 2: 7.0 Point 1 is in quadrant 1 Point 2 is in quadrant 4 Point 3 is in quadrant 2 [Subject: Java Programming] Create a Java Program called Point that does the following. -the point class has two instance variables x and y. Both instance variables will have type double. Both instance variables will be private. -create two constructors: a default no argument constructor and a constructor that takes two integers as arguments(representing x and y coordinates). -create accessors(getters) and mutators(setters) methods for each instance variable. -implement the following instance methods: public double distFromOrg() public double DistFromPoint(Point P) public int whatQuadrant() public double slope(Point P)
Finally in the main method(in the Point class) do the following: -create 3 point objects values of x and y coordinates can be defined by YOU. -print the three point objects to the console showing their x and y coordinates. -compute the distance between two point objects. Which two point objects is up to you. Print the distance to the console. -compute the distance between a Point object and the origin. Which Point object you used is up to you. Print the distance to the console. -compute the slope of a line passing through two point objects. Which two point objects is up to you. Print the slope to the console. -determine which quadrant all three point objects are in. Print the quadrants to the console.
Example Output: Point 1 x-coord: 3.00 y-coord: 2.00 Point 2 x-coord: 2.00 y-coord: -5.00 Point 3 x-coord: -1.00 y-coord: 2.00 Distance between Point 1 and Point 2: 7.0710678118654755 Distance between Point 3 and the origin(0,0): 2.23606797749979 Slope of a line passing through Point 1 and Point 2: 7.0 Point 1 is in quadrant 1 Point 2 is in quadrant 4 Point 3 is in quadrant 2 -the point class has two instance variables x and y. Both instance variables will have type double. Both instance variables will be private. -create two constructors: a default no argument constructor and a constructor that takes two integers as arguments(representing x and y coordinates). -create accessors(getters) and mutators(setters) methods for each instance variable. -implement the following instance methods: public double distFromOrg() public double DistFromPoint(Point P) public int whatQuadrant() public double slope(Point P)
Finally in the main method(in the Point class) do the following: -create 3 point objects values of x and y coordinates can be defined by YOU. -print the three point objects to the console showing their x and y coordinates. -compute the distance between two point objects. Which two point objects is up to you. Print the distance to the console. -compute the distance between a Point object and the origin. Which Point object you used is up to you. Print the distance to the console. -compute the slope of a line passing through two point objects. Which two point objects is up to you. Print the slope to the console. -determine which quadrant all three point objects are in. Print the quadrants to the console.
Example Output: Point 1 x-coord: 3.00 y-coord: 2.00 Point 2 x-coord: 2.00 y-coord: -5.00 Point 3 x-coord: -1.00 y-coord: 2.00 Distance between Point 1 and Point 2: 7.0710678118654755 Distance between Point 3 and the origin(0,0): 2.23606797749979 Slope of a line passing through Point 1 and Point 2: 7.0 Point 1 is in quadrant 1 Point 2 is in quadrant 4 Point 3 is in quadrant 2

Explanation / Answer

public class Point {

   private double x, y;

   public Point() {
       this.x = 0;
       this.y = 0;
   }

   public Point(double x, double y) {

       this.x = x;
       this.y = y;
   }

   /**
   * @return the x
   */
   public double getX() {
       return x;
   }

   /**
   * @return the y
   */
   public double getY() {
       return y;
   }

   /**
   * @param x
   * the x to set
   */
   public void setX(double x) {
       this.x = x;
   }

   /**
   * @param y
   * the y to set
   */
   public void setY(double y) {
       this.y = y;
   }

   public double distFromOrg() {

       return Math.sqrt(x * x + y * y);

   }

   public double DistFromPoint(Point P) {
       return Math.sqrt((P.x - x) * (P.x - x) + (P.y - y) * (P.y - y));
   }

   public int whatQuadrant() {
       if (x > 0 && y > 0)
           return 1;
       else if (x < 0 && y > 0)
           return 2;
       else if (x < 0 && y < 0)
           return 3;
       else
           return 4;
   }

   public double slope(Point P) {
       return (P.y - y) / (P.x - x);
   }

   public String toString() {

       return "x-coord: " + x + " y-coord: " + y;
   }

   public static void main(String args[]) {

       Point p1 = new Point(3.00, 2.00);
       Point p2 = new Point(2.00, -5.00);
       Point p3 = new Point(-1.00, 2.00);
       System.out.println("Point 1 " + p1);
       System.out.println("Point 2 " + p2);
       System.out.println("Point 3 " + p3);
       System.out.println("Distance between Point 1 and Point 2 :"
               + p1.DistFromPoint(p2));
       System.out.println("Distance between Point 3 and the origin(0,0):"
               + p3.distFromOrg());
       System.out
               .println("Slope of a line passing through Point 1 and Point 2:"
                       + p1.slope(p2));
       System.out.println("Point 1 is in quadrant " + p1.whatQuadrant());
       System.out.println("Point 2 is in quadrant " + p2.whatQuadrant());
       System.out.println("Point 3 is in quadrant " + p3.whatQuadrant());

   }

}

OUTPUT:

Point 1 x-coord: 3.0 y-coord: 2.0
Point 2 x-coord: 2.0 y-coord: -5.0
Point 3 x-coord: -1.0 y-coord: 2.0
Distance between Point 1 and Point 2 :7.0710678118654755
Distance between Point 3 and the origin(0,0):2.23606797749979
Slope of a line passing through Point 1 and Point 2:7.0
Point 1 is in quadrant 1
Point 2 is in quadrant 4
Point 3 is in quadrant 2

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