Can you explain the difference between method overriding and method overloading?
Sure! Method overriding occurs when a subclass provides a specific implementation of a method that is already defined in its superclass. In contrast, method overloading allows a class to have multiple methods with the same name but different parameters.
When should I use overriding instead of overloading?
You should use overriding when you want to change the behavior of a method in a subclass. Use overloading when you want to create multiple methods that perform similar functions but with different input parameters.
Can you give me an example of each?
Of course! For overriding, consider a Bird
class with a method fly()
, and a Sparrow
subclass that overrides fly()
to provide a specific implementation. For overloading, you might have a method add(int a, int b)
and another add(double a, double b)
in the same class.
Are there any performance differences between the two?
Generally, overriding can be slightly slower due to dynamic method dispatch, while overloading is resolved at compile time, making it faster. However, the difference is usually negligible in most applications.
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