Example java class for Mike

Unit3.java

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;


public class Unit3 {

 private static final String FILENAME = "energyProduced.txt";
 private static final double ELECTRICITY_COST = 0.85;

 public static void main(String[] args) {
  Scanner scan = new Scanner(System.in);
  System.out.print("Total System Cost: ");
  double num1 = scan.nextDouble();

  BufferedReader br = null;
  FileReader fr = null;

  try {
   //br = new BufferedReader(new FileReader(FILENAME));
   fr = new FileReader(FILENAME);
   br = new BufferedReader(fr);

   String sCurrentLine;

   while ((sCurrentLine = br.readLine()) != null) {
    // process data from the file, one line at a time
    System.out.println(sCurrentLine);
   }

  } catch (IOException e) {
   e.printStackTrace();
  } finally {

   try {

    if (br != null)
     br.close();

    if (fr != null)
     fr.close();

   } catch (IOException ex) {
    ex.printStackTrace();
   }
  }

  System.out.println("Total System Cost: " + num1);


 }
}