112 lines
2.5 KiB
Java
112 lines
2.5 KiB
Java
package dev;
|
|
|
|
import dev.service.StudentManager;
|
|
import dev.thread.StudentLoader;
|
|
import dev.utils.FileManager;
|
|
|
|
import java.util.List;
|
|
import java.util.Scanner;
|
|
|
|
public class Main {
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
|
|
Scanner scanner = new Scanner(System.in);
|
|
|
|
StudentManager manager = new StudentManager();
|
|
|
|
while (true) {
|
|
|
|
System.out.println("""
|
|
1.Load students
|
|
2.Search student
|
|
3.Remove student
|
|
4.Print students
|
|
5.Exit
|
|
""");
|
|
|
|
int choice = scanner.nextInt();
|
|
|
|
switch (choice) {
|
|
|
|
case 1 -> {
|
|
|
|
List<String> data = FileManager.loadStudents("students.txt");
|
|
|
|
// TODO:
|
|
|
|
// Split data into 3 parts
|
|
|
|
int size = data.size();
|
|
|
|
List<String> part1 = data.subList(0, size / 3);
|
|
List<String> part2 = data.subList(size / 3, 2 * size / 3);
|
|
List<String> part3 = data.subList(2 * size / 3, size);
|
|
|
|
// TODO:
|
|
|
|
StudentLoader t1 = new StudentLoader(part1);
|
|
|
|
StudentLoader t2 = new StudentLoader(part2);
|
|
|
|
StudentLoader t3 = new StudentLoader(part3);
|
|
|
|
// TODO:
|
|
|
|
// start()
|
|
|
|
t1.start();
|
|
t2.start();
|
|
t3.start();
|
|
|
|
// join()
|
|
|
|
t1.join();
|
|
t2.join();
|
|
t3.join();
|
|
|
|
// merge results
|
|
|
|
manager.addStudents(t1.getStudents());
|
|
manager.addStudents(t2.getStudents());
|
|
manager.addStudents(t3.getStudents());
|
|
|
|
}
|
|
|
|
case 2 -> {
|
|
|
|
System.out.print("ID: ");
|
|
|
|
int id = scanner.nextInt();
|
|
|
|
System.out.println(manager.searchStudent(id));
|
|
|
|
}
|
|
|
|
case 3 -> {
|
|
|
|
System.out.print("ID: ");
|
|
|
|
int id = scanner.nextInt();
|
|
|
|
boolean removed = manager.removeStudent(id);
|
|
|
|
System.out.println(removed);
|
|
|
|
}
|
|
|
|
case 4 ->
|
|
manager.printStudents();
|
|
|
|
case 5 -> {
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|