What is the difference between method overloading and method overriding in Java?

 

public class Average
{
    public static void main(String[] args)
    {
       int mar=56;
       int eng=67;
       int math=56;
       int subcnt=3;
       Calculateavg( mar,  eng, math,subcnt);
    
    }
    public static void Calculateavg(int mar, int eng, int math,int subcnt)
    {
        int add=mar+eng+math;
        double avg=add/subcnt;
        System.out.println(avg);
    }
} 

Output: 59.0