I’m sure this question has been asked a million times, but no matter how many Google searches I do I cannot get this working. I’m basically trying to get a project with multiple packages in it to be embedded in a webpage. I made a test program which just made some balls bounce around the … Read more
See the Integer class and the static parseInt() method: http://developer.android.com/reference/java/lang/Integer.html You will need to catch NumberFormatException though in case of problems whilst parsing, so:
In java you don’t check if a key is pressed, instead you listen to KeyEvents. The right way to achieve your goal is to register a KeyEventDispatcher, and implement it to maintain the state of the desired key: Then you can always use: You can, of course, use same method to implement isPressing(“<some key>”) with … Read more
Go to Eclipse folder, locate eclipse.ini file, add following entry (before -vmargs if present): Save file and execute eclipse.exe.
You probably need to add an import statement. This goes after your package declaration. This let’s the system know what an ArrayList is and what methods it has available. Hope that was it!
The easiest way to check is entity == null. There is no shorter way to do that. Note that there is a method for this in the standard lib: Objects.isNull(Object obj) And another one which is the opposite of the above one: Objects.nonNull(Object obj) And there is yet another one which can be used to force … Read more
string must be changed to String. By writing int score you’re trying to declare a new variable that already exists, which you declared before already. Just remove the int part and you will get the assignment you want.
If you know that you’ll want to see all Comments every time you retrieve a Topic then change your field mapping for comments to: Collections are lazy-loaded by default, take a look at this if you want to know more.
Add this to your class: Please understand that default no-argument constructor is provided only if no other constructor is written If you write any constructor, then compiler does not provided default no-arg constructor. You have to specify one.
Most probably its because the B objects are not referring to the same Java C object instance. They are referring to the same row in the database (i.e. the same primary key) but they’re different copies of it. So what is happening is that the Hibernate session, which is managing the entities would be keeping … Read more