What is Function Overriding and Overloading in Java?

• Method overloading in Java occurs when two or more methods in the same class have the exact same name, but different parameters.

class Dog{
    public void bark(){
        System.out.println("woof ");
    }
 
    //overloading method
    public void bark(int num){
    	for(int i=0; i<num; i++)
    		System.out.println("woof ");
    }
}

• On the other hand, method overriding is defined as the case when a child class redefines the same method as a parent class. Overridden methods must have the same name, argument list, and return type. The overriding method may not limit the access of the method it overrides.

class Dog{
    public void bark(){
        System.out.println("woof ");
    }
}
class Hound extends Dog{
    public void sniff(){
        System.out.println("sniff ");
    }
 
    public void bark(){
        System.out.println("bowl");
    }
}
 
public class OverridingTest{
    public static void main(String [] args){
        Dog dog = new Hound();
        dog.bark();
    }
}