#Static constructor java code

What I'm trying to achieve (very simplified) is a class which receives a dictionary as String, parses it, and has methods manipulate it like GetRandomEntry. If not, what is the recommended technique to initialize a Static class using an argument?Ī static class to my understanding is a class which cannot be instantiated (in c# they're called static classes, if Java has a different term for them, sorry for not being aware of it) – it's accessed through it's class name rather than an object name. Is there a way to pass arguments to a static constructor? because static variables are loaded into the memory before instantiation (i.e. What you are referring to is called a 'static initialization block. But, if a class have Static variables you cannot initialize them using the constructors (you can assign values to static variables in constructors but in that scenario, we are just assigning values to static variables). Strictly speaking, Java does not have static constructors because a constructor, by definition, cannot be static. If you declare a static variable in a class, if you haven’t initialized it, just like with instance variables compiler initializes these with default values in the default constructor. The main purpose of constructors in Java is to initialize the instance variables of a class. If we attempt to declare a top-level class as a static class, we will get an error.

But constructor will be called everytime when you.

Static block can also help in reducing lines of code.

#Static constructor java code

The code inside the static block is executed only once. Static block executes when the class is loaded in the memory.

I'm aware of the static block, but it seems it can't take any arguments. You can define a static field using the static keyword. In Java, only nested classes can be declared as static classes. Java static blocks will be called when JVM loads the class into memory, means it will be called only once. Parameterized Constructor Constructor Overloading with static block A static block in Java is used for static initializations of a class. I'm trying to initialize a static class, with an argument, and then run some more static code in that class.