SophiaPretty

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    Strayer,Devery,Harvard University
    Mar-1995 - Mar-2002

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Category > Computer Science Posted 02 Jan 2018 My Price 10.00

Main method not found in class Polygon

When I use the command prompt to run this file it does compile, then when I try to run the program it gives me an error. Error: Main method not found in class Polygon, please define the main method as:

  public static void main(String[] args)

or a JavaFX application class must extend javafx.application.Application

 

 

How do I fix this, because when I add the main method, it will not compile.

/**
 * Polygon Class
 */
public class Polygon {

    private int numSides;
    private double sideLength;
    private double xCoord;
    private double yCoord;
    private double apothem;
    public double perimeter;

    /**
     * constructor with no argument
     */
    public Polygon() {
        numSides = 4;
        sideLength = 5.0;
        xCoord = 0.0;
        yCoord = 0.0;
        apothem = 5.0;
        perimeter = 20.0;
    }

    /**
     * constructor with parameters
     */
    public Polygon(int numSides, double sideLength, double xCoord, double yCoord, double apothem) {
        this.numSides = numSides;
        this.sideLength = sideLength;
        this.xCoord = xCoord;
        this.yCoord = yCoord;
        this.apothem = apothem;
    }

    // getters and setters

    public int getnumSides() {
        return this.numSides;
    }

    public void setnumSide(int numSides) {
        this.numSides = numSides;
    }

    public double getsideLength() {
        return this.sideLength;
    }

    public void setsideLength(double sideLength) {
        this.sideLength = sideLength;
    }

    public double getxCoord() {
        return this.xCoord;
    }

    public void setxCoord(double xCoord) {
        this.xCoord = xCoord;
    }

    public double getyCoord() {
        return this.yCoord;
    }

    public void setyCoord(double yCoord) {
        this.yCoord = yCoord;
    }

    public double getApothem() {
        return this.apothem;
    }

    public void setApothem(double apothem) {
        this.apothem = apothem;
    }

    public double getperimeter() {
        return this.numSides * this.sideLength;
    }

    public double getArea() {
        return 0.5 * apothem * getperimeter();
    }

    // returns string form of polygon
    public String toString() {
        return "(numsides=" + numSides + ", sideLength=" + sideLength + ", xcoord=" + xCoord + ", ycoord=" + yCoord
                + ", apothem=" + apothem + ")";
    }
}

Answers

SophiaPretty
(5)
Status NEW Posted 02 Jan 2018 08:01 AM My Price 10.00

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