What is the lifecycle of a variable in Java?

What is the lifecycle of a variable in Java?

In Java, a variable's lifecycle includes its declaration, initialization, usage, and scope. Would you like to know more about each stage?

Yes, please explain the declaration and initialization stages.

Declaration is when you define a variable's type and name, while initialization is assigning it a value. For example, int x; is declaration, and x = 5; is initialization.

What about the scope of a variable?

The scope of a variable determines where it can be accessed in the code. Local variables are accessible only within the method they are declared in, while instance variables can be accessed throughout the class.

Can you give an example of local and instance variables?

Sure! A local variable is declared inside a method, like void myMethod() { int localVar = 10; }. An instance variable is declared in a class but outside any method, like class MyClass { int instanceVar; }.