- Trending Categories
- Data Structure
- Operating System
- C Programming
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Scope and lifetime of variables in Java?
A variable which is declared inside a class and outside all the methods and blocks is an instance variable. The general scope of an instance variable is throughout the class except in static methods. The lifetime of an instance variable is until the object stays in memory.
A variable which is declared inside a class, outside all the blocks and is marked static is known as a class variable. The general scope of a class variable is throughout the class and the lifetime of a class variable is until the end of the program or as long as the class is loaded in memory.
All other variables which are not instance and class variables are treated as local variables including the parameters in a method. Scope of a local variable is within the block in which it is declared and the lifetime of a local variable is until the control leaves the block in which it is declared.
- C++ Scope of Variables
- Scope of Variables in C#
- Scope of Variables in C++
- Scope of Variables in Python
- What is the scope of local variables in Java?
- Variables, their types, and Scope in C++
- Global Scope Variables in Postman?
- What are Local Scope Variables in Postman?
- Access variables from parent scope in anonymous PHP function
- What are class variables, instance variables and local variables in Java?
- What do you mean by Scope of variables inside MySQL stored procedure?
- Explain Lifetime of a variable in C language.
- Scopes of variables in Java