A static class in Java is a class that does not have any instance variables. They are known as constant variables. The only method of the class will be a constructor and no getter or setter methods are allowed.
These are also known as read-only fields. java provides support for creating static classes in order to reduce the number of instantiations of objects when their values are used once within an application.
Groups of similar constants can be grouped together into one static class, which will result in fewer instantiations when those constants are used once within your application. Let’s take a look at how you can use static class in your code.
How to create a static class in Java?
The syntax to create a static class in Java is as follows: Java static class – Syntax The syntax to create a static class in Java is as follows:
Java static class – A syntax Static class can be referred to as a class whose instance variables and methods are constants.
These static classes can be created in Java for storing constants that are used in a single place within your code.
The static class can be created with the keyword static followed by the class name. When you create a static class, it is not an object.
In order to access a static class, you have to use the class’s name, followed by a dot (.) followed by the constant values.
For example, if you want to represent the number 9, you can define the constant as 9 or you can use the static class 9 as follows:
Import Static Class in your code
One of the best ways to use a static class in your code is to import the static class at the start of your code. To import a static class, you need to add the static keyword followed by the class name and you are ready to go. For example, import static java.lang.Math;
Define constant fields in Static Class
You can define static fields in a static class. These fields are read-only and cannot be changed. These fields should be defined inside the static class and not inside the static method.
The code to define a static field in Java is as follows: Java static class – Example – Definition of static fields You can define static fields in a static class.
These fields are read-only and cannot be changed. These fields should be defined inside the static class and not inside the static method.
The code to define a static field in Java is as follows: Java static class – Example – Definition of static fields You can define static fields in a static class.
These fields are read-only and cannot be changed. These fields should be defined inside the static class and not inside the static method. The code to define a static field in Java is as follows:
Define constant methods in Static Class
You can define constant methods in a static class. These methods are static and so they should be defined inside the static class and not inside the static method.
The code to define a constant method in Java is as follows: Java static class – Example – Definition of constant methods You can define constant methods in a static class.
These methods are static and so they should be defined inside the static class and not inside the static method.
The code to define a constant method in Java is as follows: Java static class – Example – Definition of constant methods You can define constant methods in a static class.
These methods are static and so they should be defined inside the static class and not inside the static method. The code to define a constant method in Java is as follows:
Use static helper class in your code
The static helper class is a static class that contains a set of static utility methods for manipulating static variables. You can use these static utility methods in your static helper class.
For example, to get the value of static variable I in Java, you can use the static utility method as follows: Java static helper class –
Example – Use a static helper class in your code Static helper class is a static class that contains a set of static utility methods for manipulating static variables. You can use these static utility methods in your static helper class.
For example, to get the value of static variable I in Java, you can use the static utility method as follows: Java static helper class –
Example – Use a static helper class in your code Static helper class is a static class that contains a set of static utility methods for manipulating static variables.
You can use these static utility methods in your static helper class. For example, to get the value of static variable I in Java, you can use the static utility method as follows:
Conclusion
A static class in Java is a class that does not have any instance variables. They are known as constant variables.
The only method of the class will be a constructor and no getter or setter methods are allowed. These also known as read-only fields. You can create a static class in Java to reduce the number of instantiations of objects when their values are used once within an application.
One of the best ways to use a static class in your code is to import the static class at the start of your code. You can also define constant fields in a static class, where you can define static fields as read-only and constants fields that cannot be changed.
You can also define constant methods in a static class, where you can define static methods that return a static value. Finally, you can use a static helper class in your code to manipulate static variables.
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