Method Overloading in Java

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 Method overloading in Java allows a class to have multiple methods with the same name but with different parameters. When a method is overloaded, the JVM decides which method to execute based on the number, type, and order of the arguments passed to the method.

Here's an example of method overloading in Java:

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; 
 } 
}

In this example, the add method is overloaded three times with different parameter types. The first method adds two integers, the second method adds two doubles, and the third method adds three integers. When the add method is called, the JVM decides which method to execute based on the number and types of the arguments passed to the method.

Method overloading provides flexibility and convenience in programming, as it allows developers to reuse method names for different purposes without having to come up with unique names for each method.

Method overloading in Java allows you to define multiple methods with the same name but with different parameters, enabling you to perform similar operations with different input data. There are three types of method overloading in Java:

  1. Overloading methods with different parameters: This is the most common type of method overloading in Java, where you define multiple methods with the same name but different parameter lists. The parameters may differ in the number, order, and types of parameters. For example:
java
public void add(int a, int b) { ... }
public void add(int a, int b, int c) { ... }
public void add(double a, double b) { ... }
  1. Overloading methods with different return types: In this type of method overloading, you can define multiple methods with the same name and parameters, but different return types. However, the parameter list must be identical, and only the return type can differ. For example:
java
public int add(int a, int b) { ... }
public double add(int a, int b) { ... }
  1. Overloading methods with different access modifiers: In this type of method overloading, you can define multiple methods with the same name and parameter list but different access modifiers. For example:
java
public void add(int a, int b) { ... }
private void add(int a, int b) { ... }

Note that this is not common practice, as it can lead to confusion and code readability issues.

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