The role of static in Java learning notes

The role of a member in a class is modified by the static:

1. Members (member variables and member methods) that are static decorated within a class can be called directly from the class name.

2. Variables in a class that are modified by static are the same variables that are used in all of their objects.

As in the following example:

class person
{
static int Age ;
Static
{
System. out . println (" Static code block");
}

Public static voidMain(String[] args)
{
PersonP1=NewPerson();
person p2 = new person () ;
p1. Age = 10 system. out .println (p2. age ) }
} /span>

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3. In a static modified member method, a non-static member variable cannot be called and cannot be called with this.

4. Static code blocks are modified using static, and static blocks of code are executed when the class is loaded.

The role of static in Java learning notes