What is the default value of static field in Java?
What is the default value of static field in Java?
0
The default value is 0 for all numeric types and char , false for boolean , and null for reference types.
Are static variables initialized to zero in Java?
In Java, static variables are also called class variables. That is, they belong to a class and not a particular instance. As a result, class initialization will initialize static variables. In our example above, the class variable i is first initialized with an int default value of zero.
What is default value of variable in Java?
Default Values
| Data Type | Default Value (for fields) |
|---|---|
| int | 0 |
| long | 0L |
| float | 0.0f |
| double | 0.0d |
What is the default value of static boolean in Java?
false
The default value for a boolean (primitive) is false . The default value of any Object , such as Boolean , is null . The default value for a boolean is false.
What are the default values for static variables in Java?
Visibility is similar to instance variables. However, most static variables are declared public since they must be available for users of the class. Default values are same as instance variables. For numbers, the default value is 0; for Booleans, it is false; and for object references, it is null.
What is the default value in Java?
Default value of variable in java. Variables declared inside a class are known as member variables (static or non static). These variables are initialized with their default value depending on the type of variable. For example variable of type int contains 0 by default, double variable contains 0.0, etc.
How are static variables initialized in Java program?
Static variables default values with examples. In Java, static variables are also known as class variables because static variables are available through classes and not instances (objects). When a program is executed, all static variables are initialized. They are initialized even before the initialization of any other instance variables.
What’s the difference between static and PUBLIC variables in Java?
There would only be one copy of each class variable per class, regardless of how many objects are created from it. Static variables are rarely used other than being declared as constants. Constants are variables that are declared as public/private, final, and static.