On Java 15, I get

~ no response on stdout ~

from the code below. Am I missing something?

public class Solution {

    public static void main(String[] args) {
        System.out.println("FOO");
    }
}

import java.util.*;

class Student {} class Rockstar {} class Hacker {}

public class InstanceOFTutorial { static String count(ArrayList mylist) { int a = 0, b = 0, c = 0; for (int i = 0; i < mylist.size(); i++) { Object element = mylist.get(i);

        if (element instanceof Student) // 
            a++;
        if (element instanceof Rockstar) // 
            b++;
        if (element instanceof Hacker) // 
            c++;
    }
    String ret = Integer.toString(a) + " " + Integer.toString(b) + " " + Integer.toString(c);
    return ret;
}

public static void main(String[] args) {
    ArrayList mylist = new ArrayList();
    Scanner sc = new Scanner(System.in);
    int t = sc.nextInt();
    for (int i = 0; i < t; i++) {
        String s = sc.next();
        if (s.equals("Student")) mylist.add(new Student());
        if (s.equals("Rockstar")) mylist.add(new Rockstar());
        if (s.equals("Hacker")) mylist.add(new Hacker());
    }
    System.out.println(count(mylist));
}

}

the SASSA status check is much more than a simple tool for tracking grant applications. It has become a cornerstone of efficiency, transparency, and accessibility within South Africa’s social welfare system. By enabling real-time access to information, reducing errors, ensuring timely payments, and empowering applicants, it contributes to a more inclusive, streamlined, and accountable social security framework Sassa status check. The system’s ability to adapt to new technological advancements, while still providing support for all beneficiaries, makes it a crucial part of the country's efforts to ensure that social grants are delivered fairly and effectively.

import java.util.*;

class Student{} class Rockstar{ } class Hacker{}

public class InstanceOFTutorial{

static String count(ArrayList mylist){ int a = 0,b = 0,c = 0; for(int i = 0; i < mylist.size(); i++){ Object element=mylist.get(i); if(element instanceof Student) a++; if(element instanceof Rockstar) b++; if(element instanceof Hacker) c++; } String ret = Integer.toString(a)+" "+ Integer.toString(b)+" "+ Integer.toString(c); return ret; }

public static void main(String []args){ ArrayList mylist = new ArrayList(); Scanner sc = new Scanner(System.in); int t = sc.nextInt(); for(int i=0; i