Method Overloading with Different Parameter Types and Their Subclasses in Java

Write a Java program to demonstrate method overloading with different parameter types and their subclasses

In the main method, an instance of the MethodOverloadingDemo class is created.
Various printInfo methods of MethodOverloadingDemo are called with different arguments.
The printInfo method is overloaded to accept both String and Number arguments.
When printer.printInfo(str) is called, it matches the method with a String parameter.
When printer.printInfo(integer) is called, it matches the method with a Number parameter because Integer is a subclass of Number.
Similarly, when printer.printInfo(dbl) is called, it also matches the method with a Number parameter because Double is also a subclass of Number.
The appropriate overloaded methods are called based on the arguments passed, and the corresponding messages are printed to the console.

Source Code

public class OverloadingWithSubclassesDemo
{
	public static void main(String[] args)
	{
		MethodOverloadingDemo printer = new MethodOverloadingDemo();
 
		String str = "Hello World!";
		Integer integer = 23;
		Double dbl = 84.14;
 
		printer.printInfo(str);      // Calls the method for String
		printer.printInfo(integer);  // Calls the method for Number
		printer.printInfo(dbl);      // Calls the method for Number (Double is a subclass of Number)
	}
}
class MethodOverloadingDemo
{
	void printInfo(String message)
	{
		System.out.println("Printing String : " + message);
	}
 
	void printInfo(Number number)
	{
		System.out.println("Printing Number : " + number);
	}
}

Output

Printing String : Hello World!
Printing Number : 23
Printing Number : 84.14

Method Overloading with Different Parameter Types and Their Subclasses in Java

Source Code

Output

Example Programs

Method Overloading Programs in Java