Java

The java.lang.Math package is very powerful. Understand more methods in this package that are related to the Euler’s number named e.

For triggering a synchronous GET request we can rely on HTTP Client API as follows: HttpClient client = HttpClient.newHttpClient();HttpRequest request

To avoid null exceptions, we usually validate against null and emptiness as shown: if(object != null && !object.equals(“”)) {} We

The following code shows you how to compute the n Fibonacci number recursively: int fibonacci(int k) { if (k return

Automation of tasks is a good concept. Consider the example below in which you create a task and schedule it

Java arrays are not resizable. But we can work around this constraint with the following trick. int[] newArr = Arrays.copyOf(arr,

You can terminate the Java runtime that you are in programmatically. The Java Runtime class provides a method halt(argument) to

With the Java Reflection API, we can isolate the abstract methods from a class via the following snippet of code:

Knowing the current flush mode can be done as follows: // via EntityManagerentityManager.getFlushMode();// in Hibernate JPA, via Session(entityManager.unwrap(Session.class)).getFlushMode();// starting with