Pages Home core java spring online courses thread java 8 coding sql books oop interview certification free resources best. In order to understand the difference between static and dynamic binding in Java, it's important to first learn what is binding? Binding means the link between reference and actual code e. There are two types of method binding in Java, static binding and dynamic binding. When a method is called in Java it's bonded to the actual code either at compile time or runtime, when the program is actually started and objects are created.
As the name suggests, static binding is more of static nature hence it occurs at compile time i. Since it happens early in the program's life cycle it is also known as early binding in Java. On the other hand, dynamic binding occurs at runtime, when JVM starts your program. This time which method to call is figured out by an actual object, which information was not available at compile time because objects are created at runtime. Since it happens late in the program life cycle, it is also known as late binding in Java.
So, this was the fundamental difference between static binding vs dynamic binding in Java , one occurs early at compile time using the type of reference variable, while the other occurs late at runtime by using actual objects.
Let's see a couple of more differences to understand this concept better. It is also one of the frequently asked Java questions , especially during the first few rounds, so spending time here will be definitely worth it. Average rating 4. Vote count: No votes so far! Be the first to rate this post. Primary Primary. Skip to content. The static binding happens at the compile-time, and dynamic binding happens at the runtime. Hence, they are also called early and late binding, respectively.
In static binding, the function definition and the function call are linked during the compile-time, whereas in dynamic binding, the function calls are not resolved until runtime. So, they are not bound until runtime. Static binding happens when all information needed to call a function is available at the compile-time. Dynamic binding happens when the compiler cannot determine all information needed for a function call at compile-time.
Static binding can be achieved using the normal function calls, function overloading, and operator overloading, while dynamic binding can be achieved using the virtual functions. Since all information needed to call a function is available before runtime, static binding results in faster execution of a program. React Native. Python Design Patterns. Python Pillow. Python Turtle. Verbal Ability. Interview Questions. Company Questions. Artificial Intelligence. Cloud Computing. Data Science.
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