I get the error int cannot be converted to boolean?c
The Java greater than or equal to operator is >=, not =>. Where you did: You should have done: If you ever have questions regarding this, check the Java Documentation first.
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TicTacToe AI Java
So I thought i’d come back after finding the old code I did for this and answer how I did it. It’s probably still far from perfect but it’s very close. I started with a very simple class of player which would get and set markers. I then added a set class which would set … Read more
Meaning of @Resource annotation
First of all, to understand the point of @Resource you need to understand the Inversion of Control (IoC). Inversion of Control is a principle in software development which goes that the control of objects should be transferred to a container or a framework. Dependency Injection (DI) is a pattern of IoC implementation, where the control being inverted is the setting … Read more
Eclipse java debugging: source not found
Eclipse debugging works with the class actually loaded by the program. The symptoms you describe sounds like the class in question was not found in the project, but in a distribution jar without debug info found before the project you are working with. This can happen for several reasons but have a look at the location where the classes … Read more
What does “AL lib: alc_cleanup: 1 device not closed” mean?
The AL lib is the “audio library” used by Libgdx (one of the OpenAL variants). I believe this message just means that the audio library is cleaning up some (in your case just one) audio streams/handles for you. If you see this at exit, its harmless as all resources will be cleaned up by the … Read more
How to clear react-native cache?
For React Native Init approach (without expo) use:
Print a boolean value with printf
I assume you are running into a buffering issue, such that your program exits before your buffer flushes. When you use printf() or print() it doesn’t necessarily flush without a newline. You can use an explicit flush() or add a new-line (which will also cause a flush()) See also Buffered Streams – The Java Tutorials, Flushing Buffered Streams which says in part Some buffered … Read more
Can we write our own iterator in Java?
Sure. An iterator is just an implementation of the java.util.Iterator interface. If you’re using an existing iterable object (say, a LinkedList) from java.util, you’ll need to either subclass it and override its iterator function so that you return your own, or provide a means of wrapping a standard iterator in your special Iterator instance (which has the advantage of being more broadly used), … Read more
How do I add a simple jQuery script to WordPress?
I know what you mean about the tutorials. Here’s how I do it: First you need to write your script. In your theme folder create a folder called something like ‘js’. Create a file in that folder for your javascript. E.g. your-script.js. Add your jQuery script to that file (you don’t need <script> tags in a .js … Read more
Instantiating object of type parameter
After type erasure, all that is known about T is that it is some subclass of Object. You need to specify some factory to create instances of T. One approach could use a Supplier<T>: Usage might look like this: Alternatively, you can provide a Class<T> object, and then use reflection.