public class Account{
   int id = 0;
   double startBalance = 0;
   double endBalance = 0;
   double monthlyInterestRate = 0.03;
   double interest;
   public Account (){
   }
   public Account (int id, double balance, double monthlyInterestRate){
      this.id = id;
      this.startBalance = balance;
      this.monthlyInterestRate = monthlyInterestRate;
   }
   public void computeInterest(){
      this.interest = this.startBalance * this.monthlyInterestRate;
      this.endBalance = this.startBalance+this.interest;
   }
   public void printAccountInfo(){
      // this.computeInterest();
      System.out.println("Account ID: " + this.id);
      System.out.println("Account Balance: " + this.startBalance);
      System.out.println("Interest gained: " + this.interest);
      System.out.println("New balance: " + this.endBalance);
   }
}