Lab Exercise 06.2 Coordinate Geometry USE JAVA The purpose of this exercise is t
ID: 3904650 • Letter: L
Question
Lab Exercise 06.2
Coordinate Geometry
USE JAVA
The purpose of this exercise is to demonstrate class reusability by creating a class that is useful in a variety of contexts. You will design and code a class named Point which can represent a geometric point with x- , y- and z-coordinates.
The class will contain
A private, class-level variable, a String, which will be the point’s ID.
Three private, class-level integer variables x, y and z that represent the coordinates of the point.
A no-argument (default) constructor that initializes x, y and z with 0 values.
A constructor that accepts three arguments and initializes x, y and z with those values.
A getX( ) method, a getY( ) method and a getZ() method.
A getID( ) method
A method named distance that returns the distance from this point to another point.
public int distance( point p);
I have written a main to test your class. This main method will test the point class and all of its methods by generating an ArrayList of 8 points (at x, y and z values -15 to +15).
The test program will supply pairs of points by using two String values, (ID names for two points). The program will then display the distance between the two specified points. This will be done for a number of point-pairs.
Testing
Files:
Main.java supplied by blackboard
Point.java supplied by you
Main.java
Explanation / Answer
Below is your Point class. Please do rate this answer positive, If i was able to help you. Let me know if you have any issues in comments
Point.java
public class Point {
// data fields
private String id;
private int x;
private int y;
private int z;
Point() {
id = "";
x = 0;
y = 0;
z = 0;
}
public Point(String nm, int x, int y, int z) {
this.x = x;
this.y = y;
this.z = z;
this.id = nm;
}
public String getID() {
return id;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public int getZ() {
return z;
}
public int distance(Point p) {
int px = p.getX();
int py = p.getY();
int distance = 0;
distance = distance + Math.abs(x - px);
distance = distance + Math.abs(y - py);
return distance;
}
}
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