#25 Methods Overloading in JAVA | Skyhighes | Lecture 25

Here's a comprehensive explanation of method overloading in Java, incorporating visuals:

Method Overloading: Same Name, Different Tasks

In Java, method overloading allows you to have multiple methods with the same name within a class, as long as their parameter lists are different. This means they can accept different types or numbers of arguments, enabling flexible code that handles varied inputs.

Key Concepts:

Parameter List Difference: Overloaded methods must have distinct parameter lists, differing in:
Number of parameters
Data types of parameters
Order of parameters
Return Type Irrelevance: Return types alone don't differentiate overloaded methods.
Access Modifiers: Overloaded methods can have different access modifiers (public, private, protected).
Example:

Java
public

class

Calculator

{

public

int

add(int a, int b)

{
return a + b;
}

public

double

add(double a, double b)

{
return a + b;
}

public

int

add(int a, int b, int c)

{
return a + b + c;
}
}
Use code with caution. Learn more
Visualizing Method Overloading:

Benefits of Method Overloading:

Improved Readability: Code becomes more intuitive as methods share a logical name for similar actions.
Type Flexibility: Handles various data types seamlessly.
Code Reusability: Avoids redundant method names for similar operations.
Example Usage:

Java
Calculator calc = new Calculator();
int sum1 = calc.add(5, 3); // Calls int add(int, int)
double sum2 = calc.add(2.5, 1.8); // Calls double add(double, double)
int sum3 = calc.add(1, 2, 3); // Calls int add(int, int, int)