My First Java

class mycode{
    mycode(){
        System.out.println(" This is mycode");
    }
    void printinfo()
    {
        System.out.println("Name: Sabiha Mahjabin Moon");
        System.out.println("ID: 221002236");
        System.out.println("Semester: Spring 2023");
       
        multiply(12, 3) ;
    }
    void sum (int a, int p){
        int c = a+p ;
        int d = a-p ;
        System.out.println("Sum = "+ c +" Sub = " +d);
        for (int i = 1; i<=20 ;i++){
            if (i%2==0){
              System.out.println("Even " +i);  
            }
            if (i%3==0){
            System.out.println("Odd and divisible by 3 =  " +i);
        }
                else {
                   
            System.out.println("Even = " +i);
       
               
                }
    }
    }
    private void multiply (int a, int p){
        int z = a*p ;
        System.out.println("multiply = " + z);
    }
}
public class Ytreyugh {
   static  void calculate( int x , int y)
    {
        int d = x/y ;
        System.out.println("Division = " +d);
       
    }

    public static void main(String[] args) {
        System.out.println("Hello World!");
        System.out.println("What's your problem !");
        mycode abc = new mycode () ;
        abc.printinfo();
        abc.sum(10, 30);
        calculate(50 , 10);
        //printinfo()
    }
   
}