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Text File  |  1997-04-20  |  312 b   |  16 lines
  1. class Account {
  2.    private double balance;
  3.  
  4.    synchronized double getBalance() {
  5.       return balance;
  6.    }
  7.  
  8.    synchronized void setBalance(double newBalance) {
  9.       balance = newBalance;
  10.    }
  11.  
  12.    synchronized void updateBalance(double amount) {
  13.       setBalance(getBalance() + amount);
  14.    }
  15. }
  16.