title: Using if/else statements in setters
body: <p>in my UML it is telling me to not let the field update if the value is negative</p>
  
  <pre><code>public void setCurrentBalance(double currentBalance)
  {
      if (currentBalance &lt;= 0)
          this.currentBalance = currentBalance;
      else
          this.currentBalance = currentBalance;
  }
  </code></pre>
  
  <p>Does this look correct if my constructor looks like:</p>
  
  <pre><code>    setAccountNumber(accountNumber);
      setOwnerFirstName(ownerFirstName);
      setOwnerLastName(ownerLastName);
      setCurrentBalance(currentBalance);
      setMinimumBalanceRequired(minimumBalanceRequired);
  </code></pre>