Create PlantingGrapevines.java

Author: Thesnowmanndev

Starting out with Java (Tony Gaddis) 7th Ed/Programming Challenges/2. Chapter 2 - Java Fundamentals/20. Planting Grapevines/src/PlantingGrapevines.java

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+import java.util.Scanner;
+
+public class PlantingGrapevines {
+/*    A vineyard owner is planting several new rows of grapevines and needs to know how many grapevines to plant in each
+    row. She has determined that after measuring the length of a future row, she can use the following formula to
+    calculate the number of vines that will fit in the row, along with the trellis end-post assemblies that will need to
+    be constructed at each end of the row:
+
+    V=R−2ES
+
+    The terms in the formula are:
+    V is the number of grapevines that will fit in the row.
+    R is the length of the row, in feet.
+    E is the amount of space used by an end-post assembly.
+    S is the space between vines, in feet.
+
+    Write a program that makes the calculation for the vineyard owner. The program should ask the user to input the
+    following:
+    - The length of the row, in feet
+    - The amount of space used by an end-post assembly, in feet
+    - The amount of space between the vines, in feet
+
+    Once the input data has been entered, the program should calculate and display the number of grapevines that will
+    fit in the row.*/
+
+    private static final Scanner input = new Scanner(System.in);
+    private double numberOfGrapevinesPerRow;
+    // in feet:
+    private double lengthOfRow;
+    private double spacePerEndPost;
+    private double spaceBetweenVines;
+
+    public double calculateNumberOfGrapevines() {
+        double V;
+        double R =  getLengthOfRow();
+        double E = getSpacePerEndPost();
+        double S = getSpaceBetweenVines();
+
+        V = R - (2 * E * S);
+
+        return  V;
+    }
+
+    public void setNumberOfGrapevinesPerRow(int numberOfGrapevinesPerRowInput) {
+        numberOfGrapevinesPerRow = numberOfGrapevinesPerRowInput;
+    }
+
+    public void setLengthOfRow(double lengthOfRowInput) {
+        lengthOfRow = lengthOfRowInput;
+    }
+
+    public void setSpacePerEndPost(double spacePerEndPostInput) {
+        spacePerEndPost = spacePerEndPostInput;
+    }
+
+    public void setSpaceBetweenVines(double spaceBetweenVinesInput) {
+        spaceBetweenVines = spaceBetweenVinesInput;
+    }
+
+    public double getNumberOfGrapevinesPerRow() {
+        return numberOfGrapevinesPerRow;
+    }
+
+    public double getLengthOfRow() {
+        return lengthOfRow;
+    }
+
+    public double getSpacePerEndPost() {
+        return spacePerEndPost;
+    }
+
+    public double getSpaceBetweenVines() {
+        return spaceBetweenVines;
+    }
+
+
+    public static void main(String[] args) {
+        PlantingGrapevines plantingGrapevines = new PlantingGrapevines();
+
+        System.out.println( "Grapevines per row Calculator\n");
+
+        System.out.println( "What is the length of the row? (in ft)");
+        plantingGrapevines.setLengthOfRow(input.nextDouble());
+        System.out.println( "How much space does your end post occupy? (in ft)");
+        plantingGrapevines.setSpacePerEndPost(input.nextDouble());
+        System.out.println( "How much space is between the vines? (in ft)");
+        plantingGrapevines.setSpaceBetweenVines(input.nextDouble());
+        System.out.println( "\nYou input:");
+        System.out.println( "Length of row: " + plantingGrapevines.getLengthOfRow() + "ft.");
+        System.out.println( "Space for End-post: " + plantingGrapevines.getSpacePerEndPost() + "ft.");
+        System.out.println( "Space between vines: " + plantingGrapevines.getSpaceBetweenVines() + "ft.");
+        System.out.println("\nYour Calculation:");
+        plantingGrapevines.setNumberOfGrapevinesPerRow((int) plantingGrapevines.calculateNumberOfGrapevines());
+        System.out.println(plantingGrapevines.getNumberOfGrapevinesPerRow() + " grapevines per row.");
+    }
+}