Answers for "function overloading in java"

method overloading

//https://www.geeksforgeeks.org/overloading-in-java/
// Java program to demonstrate working of method
// overloading in Java. 
  
public class Sum { 
  
    // Overloaded sum(). This sum takes two int parameters 
    public int sum(int x, int y) 
    { 
        return (x + y); 
    } 
  
    // Overloaded sum(). This sum takes three int parameters 
    public int sum(int x, int y, int z) 
    { 
        return (x + y + z); 
    } 
  
    // Overloaded sum(). This sum takes two double parameters 
    public double sum(double x, double y) 
    { 
        return (x + y); 
    } 
  
    // Driver code 
    public static void main(String args[]) 
    { 
        Sum s = new Sum(); 
        System.out.println(s.sum(10, 20)); 
        System.out.println(s.sum(10, 20, 30)); 
        System.out.println(s.sum(10.5, 20.5)); 
    } 
}

method overloading in java

/*A class having multiple methods with
same name but different parameters 
is called Method Overloading*/

public class Names{
	static void name(String fname,String lname){
		System.out.println("My firstname is "+fname+" and lastname is "+lname);
	}
	static void name(String fname,String mname,String lname){
		
		System.out.println("My firstname name is "+fname+" and middlename is "+mname+" and lastname is "+lname);
	}
	public static void main(String[] args){
		Names.name("Khubaib","Ahmed");
		Names.name("Khubaib","Imtiaz","Ahmed");
	}
}

Method overloading in Java

public void Square ( int number ) 
{
 int square = number * number;
 System.out.printIn(“Method with Integer Argument Called:“+square);
 }
public void Square(double number)
 {
 double square = number * number; 
System.out.printIn(“Method with double Argument Called:“+square);
}
public void Square(long number)
 { 
long square = number * number;
System.out.printIn(“Method with long Argument Called:“+square);
}

java overloading

class CalculateSquare
 { 
public void square()
 { 
System.out.println("No Parameter Method Called");
 } 
public int square( int number )
 {
int square = number * number;
System.out.println("Method with Integer Argument Called:"+square); 
}
public float square( float number ) 
{
 float square = number * number;
 System.out.println("Method with float Argument Called:"+square); 
}
public static void main(String[] args)
  {
    CalculateSquare obj = new CalculateSquare();
    obj.square();
    obj.square(5);   
    obj.square(2.5);   
  }
 }

what is method overloading and method overriding in Java?

Method overloading is providing two separate methods in a class with the same name but different arguments, while the method return type may or may not be different, which allows us to reuse the same method name.

Method overriding means defining a method in a child class that is already defined in the parent class with the same method signature, same name, arguments, and return type