I am trying to write a Geometry.java program but Dr.Java is giving me errors and I…

I am trying to write a Geometry.java program but Dr.Java is
giving me errors and I dont know what I am doing wrong.
import java.util.Scanner;
/**

This program demonstrates static methods

*/
public class Geometry

{

public static void main(String[] args)

{

int choice; // The user’s choice

double value = 0; // The method’s return value

char letter; // The user’s Y or N decision

double radius; // The radius of the circle

double length; // The length of the rectangle

double width; // The width of the rectangle

double height; // The height of the triangle

double base; // The base of the triangle

double side1; // The first side of the triangle

double side2; // The second side of the triangle

double side3; // The third side of the triangle
// Create a scanner object to read from the keyboard

Scanner keyboard = new Scanner(System.in);

  

// The do loop allows the menu to be displayed first

do

{

// TASK #1 Call the printMenu method

printMenu();

choice = keyboard.nextInt();
switch(choice)

{

case 1:

System.out.print(“Enter the radius of ” +

“the circle: “);

radius = keyboard.nextDouble();
// TASK #3 Call the circleArea method and

// store the result in the value variable

value=cirArea(radius);

System.out.println(“The area of the ” +

“circle is ” + value);

break;

case 2:

System.out.print(“Enter the length of ” +

“the rectangle: “);

length = keyboard.nextDouble();

System.out.print(“Enter the width of ” +

“the rectangle: “);

width = keyboard.nextDouble();
// TASK #3 Call the rectangleArea method and

// store the result in the value variable

value=recArea(length, width);

System.out.println(“The area of the ” +

“rectangle is ” + value);

break;

case 3:

System.out.print(“Enter the height of ” +

“the triangle: “);

height = keyboard.nextDouble();

System.out.print(“Enter the base of ” +

“the triangle: “);

base = keyboard.nextDouble();
// TASK #3 Call the triangleArea method and

// store the result in the value variable

value=triArea(base,height);

System.out.println(“The area of the ” +

“triangle is ” + value);

break;

case 4:

System.out.print(“Enter the radius of ” +

“the circle: “);

radius = keyboard.nextDouble();
// TASK #3 Call the circumference method and

// store the result in the value variable

value= cirCircumference(radius);

System.out.println(“The circumference ” +

“of the circle is ” +

value);

break;

case 5:

System.out.print(“Enter the length of ” +

“the rectangle: “);

length = keyboard.nextDouble();

System.out.print(“Enter the width of ” +

“the rectangle: “);

width = keyboard.nextDouble();
// TASK #3 Call the perimeter method and

// store the result in the value variable

value=recPerimeter(length,width);

System.out.println(“The perimeter of ” +

“the rectangle is ” +

value);

break;

case 6:

System.out.print(“Enter the length of ” +

“side 1 of the ” +

“triangle: “);

side1 = keyboard.nextDouble();

System.out.print(“Enter the length of ” +

“side 2 of the ” +

“triangle: “);

side2 = keyboard.nextDouble();

System.out.print(“Enter the length of ” +

“side 3 of the ” +

“triangle: “);

side3 = keyboard.nextDouble();
// TASK #3 Call the perimeter method and

// store the result in the value variable

value=triPerimeter(side1,side2,side3);

System.out.println(“The perimeter of ” +

“the triangle is ” +

value);

break;

default:

System.out.println(“You did not enter ” +

“a valid choice.”);

}

keyboard.nextLine(); // Consume the new line
System.out.println(“Do you want to exit ” +

“the program (Y/N)?: “);

String answer = keyboard.nextLine();

letter = answer.charAt(0);
} while(letter != ‘Y’ && letter != ‘y’);

}
// TASK #1 Create the printMenu method here

public static void printMenu(){

System.out.println(“This is a geometry calculator”);

System.out.println(“Choose what you would like to
calculate”);

System.out.println(“1. Find the area of a circle”);

System.out.println(“2. Find the area of a rectangle”);

System.out.println(“3.Find the area of a triangle”);

System.out.println(“4. Find the circumference of a circle”);

System.out.println(“5. Find the perimeter of a rectangle”);

System.out.println(“6. Find the perimeter of a triangle Enter the
number of your choice:”);
// TASK #2 Create the value-returning methods here

/**

*

*

*

*/

public static double cirArea(double radius)

{

return Math.Pi*radius*radius;

}

/**

*

*

*

*/

public static double recArea(double length,double width){

return lenght*width;

}

/**

*

*

*

*/

public static double triArea(double base,double height){

return 0.5*base*height;

  

}

/**

*

*

*

*/

public static double cirCircumference(double radius){

return 2*Math.Pi*radius;

  

}
/**

*

*

*/

public static double recPerimeter(double length,double
width){

return 2*(length+width);

  

}

/**

*

*

*/

public static double triPerimeter(double side1,double side2,double
side3);

{

return side1+side2+side3;

  

}
  

// TASK #4 Write javadoc comments for each method

}

}