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How do I get Static Constructor functionality in JAVA?

I am learning C # and JAVA. I found Static Constructor

in C # which is used to initialize any static data or to perform a specific action that only needs to be done once. It is called automatically before the first instance is created or any static members are referenced.

Example:

class SimpleClass
{
    // Static variable that must be initialized at run time. 
    static readonly long baseline;

    // Static constructor is called at most one time, before any 
    // instance constructor is invoked or member is accessed. 
    static SimpleClass()
    {
        baseline = DateTime.Now.Ticks;
    }
}

My question is, how can I get the same functionality in JAVA, is there a way?

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2 answers


You can use a static initialization block like this:

class SimpleClass
{
    static{

    }

}

A static block is fetched only once, no matter how many objects of that type are created.



You can see this link for more details.

Update: The static

initialization block is only called when the class is loaded into memory.

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You have a static initializer block.



static final long baseline;
static {
    baseline = ...
}
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