Simple Array Algorithms: Finding a Value

Check all elements until you have found a match.

public class Bank
{
   public BankAccount find(int accountNumber)
   {
      for (BankAccount a : accounts)
      {
         if (a.getAccountNumber() == accountNumber) // Found a match
            return a;
      }
      return null; // No match in the entire array list
   }
   . . .
}