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Questions and Answers
What determines which method is called in method overloading?
What determines which method is called in method overloading?
What is an example of function polymorphism in Python?
What is an example of function polymorphism in Python?
What is the purpose of type parameters in parametric polymorphism?
What is the purpose of type parameters in parametric polymorphism?
What is the result of operator overloading?
What is the result of operator overloading?
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What is the main difference between method overloading and function polymorphism?
What is the main difference between method overloading and function polymorphism?
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What is the benefit of parametric polymorphism?
What is the benefit of parametric polymorphism?
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Study Notes
Polymorphism
Method Overloading
- Method overloading is a type of polymorphism where multiple methods with the same name can be defined, but with different parameter lists.
- The method to be called is determined by the number and types of parameters passed to it.
- Method overloading allows for more flexibility in programming, as it enables the same method name to be used for different operations.
- Example:
print(int x)
,print(double x)
,print(string s)
Function Polymorphism
- Function polymorphism is a type of polymorphism where a function can be called with different types of arguments.
- The function can behave differently depending on the type of argument passed to it.
- Function polymorphism is achieved through function overloading or generic functions.
- Example:
sort()
function in Python, which can sort lists, tuples, or other iterable objects.
Parametric Polymorphism
- Parametric polymorphism is a type of polymorphism where a function or method can work with different data types, without explicit type casting.
- It is achieved through the use of type parameters, which are placeholders for specific types.
- Example:
swap<T>(T x, T y)
function in C++, which can swap values of any typeT
.
Operator Overloading
- Operator overloading is a type of polymorphism where operators such as
+
,-
,*
, etc. can be redefined for user-defined types. - Operator overloading allows for more intuitive and natural-looking code, as it enables the use of operators on objects of custom classes.
- Example:
Vector
class in C++, which overloads the+
operator to perform vector addition.
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Description
Learn about the different types of polymorphism in programming, including method overloading, function polymorphism, parametric polymorphism, and operator overloading. Understand how they enable more flexible and intuitive coding.