public class Main {
    public static void main(String[] args) {
        Developer[] list = {
                new JuniorDeveloper("Mike", 500, 0),
                new JuniorDeveloper("Dima", 500, 1),
                new JuniorDeveloper("Vova", 500, 2),
                new SeniorDeveloper("Jack", 500, 5),
                new TeamLeadDeveloper("Robby", 500, 7),
                new SeniorDeveloper("Sen", 500, 3),
                new SeniorDeveloper("Chen", 200, 2)
        };
        StringBuilder sb;

        Developer[] listJun = new JuniorDeveloper[JuniorDeveloper.getCountJunior()];
        Developer[] listSen = new SeniorDeveloper[SeniorDeveloper.getCountSenior()];
        Developer[] listTeam = new TeamLeadDeveloper[TeamLeadDeveloper.getCountTeamLead()];

        /*Show seniors with salary > 1500 */

        for (Developer d : list) {
            if (d instanceof SeniorDeveloper && d.getSalary() > 1500) {
                sb = new StringBuilder() // !!!
                        .append(d.getName())
                        .append(": ")
                        .append(d.getBasicSalary())
                        .append(" -> ")
                        .append(d.getSalary());
                System.out.println(sb.toString());
            }
        }

        /* Separate developers in different arrays */

        int j = 0;
        int s = 0;
        int t = 0;

        for (Developer d : list) {
            if (d instanceof JuniorDeveloper) {
                listJun[j++] = d;
            } else if (d instanceof SeniorDeveloper) {
                listSen[s++] = d;
            } else if (d instanceof TeamLeadDeveloper) {
                listTeam[t++] = d;
            }
        }

        for (int i = 0; i < listTeam.length; i++) {
            System.out.println(listTeam[i]);
        }

    }

}