Run the program by specifying fully classified name. It works!
With out specifying package name, if you run it, it will throw
|PrimeFaces 5.1 not being included properly|
Turns out this was an issue in how Eclipse was deploying my project's
EAR file to the app server. The WAR project wasn't set to include the
Maven dependencies in the deployment assembly. Once I made that
change it deployed as expected and Primefaces worked without issue.
|Reducing IF statement java|
Since you are not going to have to modify this code later with more
units, I would suggest you a ternary operator :
String s = cbTwo.getValue();
showAnswer.setText(s.equals("Celsius") ? fahr.fahrenheitToCelsius() :
s.equals("Farenheit") ? fahr.fahrenheitToFahrenheit() :
Note that it is not exactly equivalent, in the case that s does not
match any of thestrings you
|Designing a traffic light application|
I wouldn't use timer at all. You would be better off looking at the
ScheduledExecutorService for this sort of application.
|Recursion: Binary to Decimal|
You don't have a base case; binary2Decimal (3-arg version) always
calls itself. (Since the only thing changing from one call to the
next is high, your base case should probably involve that somehow.)
|Java arraylist accessing an element to calculate average|
The list numbers contains String objects, so casting the elements to
double will throw an exception. You could have avoided this runtime
exception if you had used the generic type ArrayList properly:
ArrayList<String> numbers = new ArrayList<String>();
This would allow the compiler to detect ahead of time the type
To read the double value of the string, you can use
|libGDX 3D rotate ModelInstance to the second one with a coefficient of rotation speed|
Actually you should never rotate a ModelInstance to face another
ModelInstance, but you should rotate it to an angle given by the
That means, that you should sepperate the logic and the view.
In this case the logic needs to store the currentAngle and the
desiredAngle, as well as a rotationSpeed.
The desiredAngle can be calculated out of the positions of the Tower
and the Enemy.
In the u
|HashMap initialization in java|
Yes it is possible:
public static <K,V> Map<K,V> mapFromArrays(K
HashMap<K, V> result=new HashMap<K, V>();
Assuming that keys and values have the same length.
You may also use this function in a static initializer like this:
private static I
|What does @Proxy(lazy = false) do?|
@Proxy(lazy=false) will disable the default lazy loading for a
particular entity. This means you always get the initialized entity
whenever this entity is being referenced from other entities.
Using this annotation is usually a "code smell". If I were you I would
remove it and simply load all entity associations using the join fetch
directive or using @Subselect or @BatchSize eager loading.