Thread: difficulty with this code

I'M having problems with code cant get it to work..

I'm trying to read in 6 different weights representing the weights in kg of 6 different bags of flour from the keyboard.calculate the total weight and the average weight of the 6 bags of flour and print out the answers.
i get 8 errors mostly incompatible type and cannot find symbol.

import java.io.*;
 
public class flourWeight{
	//
	//declare some variables and add values
	//print the values back to the screen
	//
 
	public static void main(String[]args)throws IOException{
		//declare some variables
 
 
 
		double firstWeight ;
		double secondWeight ;
		double thirdWeight ;
		double fourthWeight ;
		double fifthWeight ;
		double sixthWeight ;
 
		double totalWeight=0 ;
		double average ;
        double VAT;
 
 
       BufferedReader kbd=new BufferedReader(new InputStreamReader(System.in));;
 
       System.out.println("Enter the weight of the Six bags of flour?");
 
		//Bellow i have printedthe first weight second weight ...
		//double firstWeight ;
		System.out.print("first weight= ");
		firstWeight=kbd.readLine();
 
       // double secondWeight ;
		System.out.print("Second Weight= ");
		secondWeight=kbd.readLine();
 
        //double thirdWeight ;
		System.out.print("third weight= ");
		thirdWeight=kbd.readLine();
 
        //double fourthWeight;
		System.out.print("fourth weight= ");
		fourthWeight=kbd.readLine();
 
       // double fifthWeight ;
		System.out.print("fifth weight= ");
		fifthWeight=kbd.readLine();
 
       // double sixthWeight;
        System.out.print("sixth weight= ");
		sixthWeight=kbd.readLine();
 
 
        totalWeight= (firstWeight + secondWeight + thirdWeight + fourthWeight + fifthWeight + sixthWeight);
        average = ( totalWeight) / 6;
 
 
		//System.out.print(" sum of " + firstNumber + " and " + secondNumber + "and" + thirdNumber + "and" + fourthNumber " = " );
		System.out.println("totalWeight : "+totalWeight);
         System.out.println(" Average : "+average);
         System.out.println("total priced as euros 3.50 per kg: "+totalWeight*3.50);
 
 
         if(totalWeight < 100)
         {  VAT = (total/100)*23;
 
		 }
		 if(totalWeight >= 100)
		 { VAT = (total/100)*21;
 
		 }
 
 
 
         //double total = 3.50;
		// final double TAX_RATE = 8.5; // Tax rate in percent
		 //double tax = total * TAX_RATE / 100; // tax is 0.2975
		 //System.out.println("Total: " + total);
         //System.out.println("Tax: " + tax);
         //System.out.printf("Total:%5.2f", total);
 
	}//end of main method
}//end of class