l 0.4 (The Point class) Design a class named MyPoint to represent a point with x

Question

l 0.4 (The Point class) Design a class named MyPoint to represent a point with x- and y-coordinates. The class contains: The data fields x and y that represent the coordinates with getter methods. A no-arg constructor that creates a point (0,0). A constructor that constnicts a noint with specified coordinates. A method name Textbook exercise 10.4 turns the distance from this point to a specified point of the MyPoint type. A method named distance that returns the distance from this point to another point with specified x and y-coordinates. Draw the UML diagram for the class and then implement the class. Write a test program that creates the two points (0, 0) and (10, 30.5) and displays the distance between them.

Explanation / Answer

TestMyPoint.java

public class TestMyPoint {

  
   public static void main(String[] args) {
       MyPoint p1 = new MyPoint(0,0);
       MyPoint p2 = new MyPoint(10, 30.5);
double distance = p1.distance(p2);
System.out.println("Distance is "+distance);
   }

}

MyPoint.java

public class MyPoint {
   private double x,y;
   public MyPoint(){
       x =0;
       y=0;
   }
   public MyPoint(double x, double y){
       this.x = x;
       this.y = y;
   }
   public double distance(MyPoint p){
       return Math.sqrt((this.x - p.x) * (this.x - p.x) + (this.y - p.y) * (this.y - p.y));
   }
   public double distance(double x, double y){
       return Math.sqrt((this.x - x) * (this.x - x) + (this.y - y) * (this.y - y));
   }  
}

Output:

Distance is 32.09750769140807

Related Questions

Navigate

• Browse (All)
• Browse L
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.