/* 9/13/2017
 * This program illustrates named constant -- use the final
 * keyword.
 * Also discusses scope of variable -- (def) where in a pgm
 * a variable is "visible" i.e. can be accessed
 */

/**
 * This class calculates the interest earned in the past
 * month for a balance in a bank account.
 */

public class BankAccount {
 
  /** main method calculates and prints interest
   */
  
  public static void main(String[] args)   {
        // 1.27% is the interest earned
        final double INTEREST = 0.0127; 
        double balance=900;
        System.out.println("balance in your account is: " + balance);
        //double balance = 1000; // cannot define balance again within
        // this scope which is the main method
        double interest = balance * INTEREST;
        System.out.println("Interest earned is: " + interest);
  }
}