What is the order of execution of static block in Java?

Static block in java is executed before main method. If we declare a Static block in java class it is executed when class loads.

Which will execute first static block or static variable?

JVM executes static blocks before the main method at the time loading a class.

Is static block executed only once?

Static block is executed ONE AND ONLY ONCE per classloader when the class is gets loaded. The sequence of static block execution as per its occurance, see the sample code below and its output. Static code is at class level and not at instance level per ClassLoader instantiating this class.

When static methods are executed?

It executes whenever the class is loaded in memory. One class can have numerous static blocks, which will be executed in the same sequence in which they are written.

Which method will execute first in Java?

button Java starts execution in the main method as shown in the code below ( public static void main(String[] args) ). The body of the main method is all the code between the first { and the last } . Every class in Java can have a main method.

Why static block is executed before main method?

In Java static block is used to initialize the static data members. Important point to note is that static block is executed before the main method at the time of class loading. Answer: No since JDK 1.7 it is not possible to execute any java class without main() method.

Is static block executed before constructor in Java?

Remember: Static blocks can also be executed before constructors.

When the static block is executed?

A static block is a block of code with a static keyword. In general, these are used to initialize the static members. JVM executes static blocks before the main method at the time of class loading.

Which comes first static block or Main?

In Java static block is used to initialize the static data members. Important point to note is that static block is executed before the main method at the time of class loading.

What is static variable and static method in Java?

The static variable is a class level variable and it is common to all the class objects i.e. a single copy of the static variable is shared among all the class objects. A static method manipulates the static variables in a class. These blocks are only executed once when the class is loaded.

When should a method be static Java?

You should use static methods whenever,

• The code in the method is not dependent on instance creation and is not using any instance variable.
• A particular piece of code is to be shared by all the instance methods.
• The definition of the method should not be changed or overridden.

What is the order of execution of all static members?

There is an order in which static block/method/variable gets initialized.

• Static Block.
• Static Variable.
• Static Method.