problem about unchecked-Collection of common programming errors

2 years ago
admin
3 minutes

  • eQui
    eclipse ide suppress-warnings unchecked raw-types
    I have a problem with the @SuppressWarnings annotation when handling raw-types warnings in Eclipse Helios.According to this post and the docs, the annotation parameter rawtypes should be used instead of the old unchecked in Eclipse Helios. However, when I use the rawtypes annotation, I get following warning:Unhandled warning token rawtypesEven when performing a quick-fix over a raw type, Eclipse suggests me to use rawtypes. However, I have found out that the old unchecked parameter still works i

  • RoD
    java hibernate transactions rollback unchecked
    I think i don’t understand something with unchecked exception.I’m using spring/hibernate.In a transaction, i’m catching a NullPointerException (so an unchecked), but at then end my transaction is not rollbacked.Is it because i catch the NPE inside the same method that throw the NPE ? This is the only diffrent i see from an other part of the code where i throw an IllegalArgumentException that is catched in an other method from the one throwing it ( and which ends with a rollback. )Thank you,

  • harold
    c# casting unchecked
    The following snippet evaluates to zero:int result = unchecked((int)double.MaxValue);Whereas, if you do this:double x = double.MaxValue int result = (int)x;The result is (would you even guess this?) int.MinValue. That fact alone is weird enough[see below], but I was under the impression that unchecked was meant to force the compiler into emitting code that pretends not to know that a conversion will definitely fail and/or some overflow happens. In other words, it should give the same result as w

  • FabienB
    java spring type-safety unchecked
    In my spring application context file, I have something like:<util:map id=”someMap” map-class=”java.util.HashMap” key-type=”java.lang.String” value-type=”java.lang.String”><entry key=”some_key” value=”some value” /><entry key=”some_key_2″ value=”some value” /> </util:map>In java class, the implementation looks like:private Map<String, String> someMap = new HashMap<String, String>(); someMap = (HashMap<String, String>)getApplicationContext().getBean(“som

  • donnyton
    java exception throw checked unchecked
    I’ve been reading about unchecked versus checked questions, none of the online resources have been truly clear about the difference and when to use both.From what I understand, both of them get thrown at runtime, both of them represent program states that are outside the expected bounds of the logic, but checked exceptions must be explicitly caught while unchecked ones do not.My question is, suppose for argument’s sake I have a method that divides two numbersdouble divide(double numerator, doubl

Originally posted 2013-12-02 01:40:25.