Question

in Java:

A point in the x - y plane is represented by its x-coordinate and y-coordinate. Design a class, pointType, that can store and process a point in the x - y plane. You should then perform operations on a point, such as :

– Print the point

– Set the x-coordinate

– Set the y-coordinate

– Get the x-coordinate

– Get the y-coordinate

– Add() : add two points

– Sub(): subtract two points

– Mul(): multiply two points

– Div(): divide one point from the other

– Ass(): assign one point to the other

– Equ(): check if two points are equal

– LessThan(): check if one point is less than the other • Note: R = √ X2 − Y2

– The default constructor

– The second constructor

– The copy constructor 2.

## Design a class pointTypeTest to test the design of pointType.

Thank you in advance!

Answer 1

Note: I browsed the net for how to check whether one point is less than another.But i didnt found.Could u plz provide how to compare two points.So that I can convert it to java logic.Thank u

__________________

pointType.java

public class pointType {
   //Declaring instance variables
   private double x;
   private double y;

   //Zero argumented constructor
   public pointType() {
       this.x = 0;
       this.y = 0;
   }

   //Parameterized constructor
   public pointType(double x, double y) {
       this.x = x;
       this.y = y;
   }

   //Creating Copy Constructor
   public pointType(pointType pt) {
       this.x = pt.x;
       this.y = pt.y;
   }

   // getters and setters
   public double getX() {
       return x;
   }

   public void setX(double x) {
       this.x = x;
   }

   public double getY() {
       return y;
   }

   public void setY(double y) {
       this.y = y;
   }

   //toString method is used to display the contents of an object inside it
   @Override
   public String toString() {
       return "(" + x + "," + y + ")";
   }
  
   //Method will add two points
   pointType add(pointType other)
   {
       pointType p=new pointType(this.x+other.getX(),this.y+other.getY());
       return p;
   }
   //Method will subtract two points
   pointType sub(pointType other)
   {
       pointType p=new pointType(this.x-other.getX(),this.y-other.getY());
       return p;
   }
   //Method will multiply two points
   pointType mul(pointType other)
   {
       pointType p=new pointType(this.x*other.getX(),this.y*other.getY());
       return p;
   }
   //Method will divide two points
   pointType div(pointType other)
   {
       pointType p=new pointType(this.x/other.getX(),this.y/other.getY());
       return p;
   }
   //Method will assign one point to another
   void ass(pointType other)
   {
       this.x=other.getX();
       this.y=other.getY();
   }
   //Method will check whether the two points are same or not
   boolean equ(pointType other)
   {
   if(this.x==other.getX() && this.y==other.getY())
       return true;
   else
   return false;
   }

  
}
___________________

pointTypeTest.java

public class pointTypeTest {
   public static void main(String[] args) {
       pointType p1 = new pointType(4, 6);
       pointType p2 = new pointType(3,4);

       System.out.println("Displaying Point#1:" + p1);
       System.out.println("Displaying Point#2:" + p2);
       System.out.println("After adding Point#1 and Point#2:" + (p1.add(p2)));
       System.out.println("After subtracting Point#2 from Point#1:" + (p1.sub(p2)));
       System.out.println("After multiplying Point#1 and Point#2:" + (p1.mul(p2)));
       System.out.println("After dividing Point#1 with Point#2:" + (p1.div(p2)));
       System.out.println("Checking whether the Point#1 and Point#2 are equal or not :" +p1.equ(p2));
       }

}
____________________________

Output:

Displaying Point#1:(4.0,6.0)
Displaying Point#2:(3.0,4.0)
After adding Point#1 and Point#2:(7.0,10.0)
After subtracting Point#2 from Point#1:(1.0,2.0)
After multiplying Point#1 and Point#2:(12.0,24.0)
After dividing Point#1 with Point#2:(1.3333333333333333,1.5)
Checking whether the Point#1 and Point#2 are equal or not :false

____________Thank You