Point Java Program

// Sammy Samkough
// Point
// Spec: In this program we will again be utilizing an Object Oriented Design to model points and perform simple linear calculations.

public class Point
{
	private double x, y;

	// default constructor
	public Point()
	{
		x = 0;
		y = 0;
	}

	// parameter constructor
	public Point(double x, double y)
	{
		this.x = x;
		this.y = y;
	}

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

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

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

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

	// assigns x and y new points
	public void assignPoint(double newX, double newY)
	{
		x = newX;
		y = newY;

		System.out.println("(" + newX + ", " + newY + ")");
	}

	// moves x how many units you choose
	public void moveX(double units)
	{
		x += units;
	}

	// moves y how many units you choose
	public void moveY(double units)
	{
		y += units;
	}

	// gets the slope: y = mx + b
	// changed the method type so we can get the slope in a double instead of an integer
	public double getSlope(Point b)
	{
		double m = 0;

		m = (b.getY() - y) / (b.getX() - x);

		return m;
	}

	// gets the distance between the two points
	public double getDistance(Point b)
	{
		double d = Math.sqrt(Math.pow(x - b.getX(), 2) + Math.pow(y - b.getY(), 2));

		return d;
	}

	// gets the midpoint between two points
	public Point getMidpoint(Point b)
	{
		double x1 = (x + b.getX()) / 2.0;
		double y1 = (y + b.getY()) / 2.0;
		Point midpoint = new Point(x1, y1);

		return midpoint;
	}

	// gets the equation of two pairs of points using y = mx + b form
	public String getEquation(Point b)
	{
		String s;
		double m = (b.getY() - y) / (b.getX() - x);

		// point-slope formula
		double d1 = y - b.getY();
		double d2 = m * (x - b.getX());

		s = "y = " + m + "x + " + b.getY();

		return s;
	}

	// writes the output of the program
	public String toString()
	{
		String s;

		s = "(" + x + ", " + y + ")";

		return s;
	}
}
-------------------------------------------------------------------------------------------------------------------------------
// Sammy Samkough
// Point
// Spec: In this program we will again be utilizing an Object Oriented Design to model points and perform simple linear calculations.

import java.util.Scanner;

public class PointClient
{
	public static void main(String args[])
	{
		Point p1 = new Point();
		Point p2 = new Point();
		Scanner sc = new Scanner(System.in);

		boolean running = true;
		int choice;
		double d1, d2;

		// welcoming message
		System.out.println("Welcome to the point class! Please choose a number from 1-7! \n");

		while(running)
		{
			System.out.println("1) Assign Points");
			System.out.println("2) Print Points");
			System.out.println("3) Get Slope");
			System.out.println("4) Get Distance");
			System.out.println("5) Get Midpoint");
			System.out.println("6) Print Equation");
			System.out.println("7) Quit");

			choice = sc.nextInt();

			switch(choice)
			{
				case 1:
					System.out.println("Point 1: ");
					System.out.println("What would you like to assign to the x variable?");
					d1 = sc.nextDouble();
					System.out.println("What would you like to assign to the y variable?");
					d2 = sc.nextDouble();
					p1.assignPoint(d1, d2);
					System.out.println("Point 2: ");
					System.out.println("What would you like to assign to the x variable?");
					d1 = sc.nextDouble();
					System.out.println("What would you like to assign to the y variable?");
					d2 = sc.nextDouble();
					p2.assignPoint(d1, d2);

					System.out.println("\nWhat would you like to do next? \n");
				break;

				case 2:
					System.out.println("Point 1: (" + p1.getX() + ", " + p1.getY() + ")");
					System.out.println("Point 2: (" + p2.getX() + ", " + p2.getY() + ")");

					System.out.println("\nWhat would you like to do next? \n");
				break;

				case 3:
					System.out.println("Slope Between Point 1 & Point 2: " + p1.getSlope(p2));

					System.out.println("\nWhat would you like to do next? \n");
				break;

				case 4:
					System.out.println("Distance Between Point 1 & Point 2: " + p1.getDistance(p2));

					System.out.println("\nWhat would you like to do next? \n");
				break;

				case 5:
					System.out.println("Midpoint Between Point 1 & Point 2: " + p1.getMidpoint(p2));

					System.out.println("\nWhat would you like to do next? \n");
				break;

				case 6:
					System.out.println("The Equation: " + p1.getEquation(p2));

					System.out.println("\nWhat would you like to do next? \n");
				break;

				case 7:
					System.out.println("Bye-bye!");
					System.exit(0);
				break;

				default:
				System.out.println("Sorry, you put in a wrong charatcer. Please input a number of 1-7. \n");
			}
		}
	}
}
/*

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
4
Distance Between Point 1 & Point 2: 8.54400374531753

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
5
Midpoint Between Point 1 & Point 2: (-4.0, 5.5)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
6
The Equation: y = -0.375x + 4.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
1
Point 1:
What would you like to assign to the x variable?
2
What would you like to assign to the y variable?
5
(2.0, 5.0)
Point 2:
What would you like to assign to the x variable?
2
What would you like to assign to the y variable?
9
(2.0, 9.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
2
Point 1: (2.0, 5.0)
Point 2: (2.0, 9.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
3
Slope Between Point 1 & Point 2: Infinity

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
4
Distance Between Point 1 & Point 2: 4.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
5
Midpoint Between Point 1 & Point 2: (2.0, 7.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
6
The Equation: y = Infinityx + 9.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
1
Point 1:
What would you like to assign to the x variable?
4
What would you like to assign to the y variable?
6
(4.0, 6.0)
Point 2:
What would you like to assign to the x variable?
-2
What would you like to assign to the y variable?
6
(-2.0, 6.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
2
Point 1: (4.0, 6.0)
Point 2: (-2.0, 6.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
3
Slope Between Point 1 & Point 2: -0.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
4
Distance Between Point 1 & Point 2: 6.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
5
Midpoint Between Point 1 & Point 2: (1.0, 6.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
6
The Equation: y = -0.0x + 6.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
1
Point 1:
What would you like to assign to the x variable?
-4
What would you like to assign to the y variable?
0
(-4.0, 0.0)
Point 2:
What would you like to assign to the x variable?

0
What would you like to assign to the y variable?
4
(0.0, 4.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
2
Point 1: (-4.0, 0.0)
Point 2: (0.0, 4.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
3
Slope Between Point 1 & Point 2: 1.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
4
Distance Between Point 1 & Point 2: 5.656854249492381

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
5
Midpoint Between Point 1 & Point 2: (-2.0, 2.0)

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
6
The Equation: y = 1.0x + 4.0

What would you like to do next?

1) Assign Points
2) Print Points
3) Get Slope
4) Get Distance
5) Get Midpoint
6) Print Equation
7) Quit
7
Bye-bye!
Press any key to continue . . .
*/