package studentdb;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Scanner;

public class MainStudentdb
{
static List<Studentdb> st = new ArrayList<Studentdb>();
	public static void main(String[] args)
	{
	Scanner sc = new Scanner(System.in);

	System.out.println("1.Admin login");
	System.out.println("2.User login");
	System.out.println("Exit");
	System.out.println("Enter your choice:");
	int choice = sc.nextInt();
	while(choice !=0)
	{

		switch(choice)
		{
		case 1:
			System.out.println("Admin login");
			Adminlogin();
			showDetails();
			break;
		case 2:
			System.out.println("User login");
			userlogin();
			break;
		case 3:
			System.out.println("Exit");
			System.exit(0);
			break;
		}
		System.out.println("1.Admin login");
		System.out.println("2.User login");
		System.out.println("Exit");
		System.out.println("Enter your choice:");
		choice = sc.nextInt();
	}
}
	public static void Adminlogin()
	{
		String username, password, name, regd_no, Branch, Semester;
		double CGPA;
		Scanner sc = new Scanner(System.in);
		System.out.println("------------------------------------");
		System.out.println("Enter username:");
		username = sc.nextLine();
		System.out.println("Enter password:");
		password = sc.nextLine();
		System.out.println("Enter name:");
		name = sc.nextLine();
		System.out.println("Enter regd_no:");
		regd_no = sc.nextLine();
		System.out.println("Enter branch:");
		Branch = sc.nextLine();
		System.out.println("Enter semester:");
		Semester = sc.nextLine();
		System.out.println("Enter CGPA:");
		CGPA = sc.nextDouble();
		System.out.println("------------------------------------");
		Studentdb db = new Studentdb();
		db.setUsername(username);
		db.setPassword(password);
		db.setName(name);
		db.setRegd_no(regd_no);
		db.setBranch(Branch);
		db.setSemester(Semester);
		db.setCGPA(CGPA);
		st.add(db);
	}

	static void showDetails()
	{

		Iterator<Studentdb> i = st.iterator();
		while(i.hasNext())
		{
			Studentdb p= i.next();
			System.out.println("-------------------------------");
			System.out.println(p.getUsername());
			System.out.println(p.getPassword());
			System.out.println(p.getName());
			System.out.println(p.getRegd_no());
			System.out.println(p.getBranch());
			System.out.println(p.getCGPA());
			System.out.println("-------------------------------");
		}
	}
	public static void userlogin()
	{
		String username, password, name, regd_no, Branch, Semester;
		double CGPA;
		Scanner sc = new Scanner(System.in);
		System.out.println("Enter username:");
		username = sc.nextLine();
		System.out.println("Enter password:");
		password = sc.nextLine();
		Iterator<Studentdb> i = st.iterator();
		boolean flag=false;
		while(i.hasNext())
		{
			Studentdb p= i.next();
			if(username.equals(p.getUsername()) && password.equals(p.getPassword()))
			{
				System.out.println("-------------------------------");
				System.out.println(p.getUsername());
				System.out.println(p.getPassword());
				System.out.println(p.getName());
				System.out.println(p.getRegd_no());
				System.out.println(p.getBranch());
				System.out.println(p.getCGPA());
				System.out.println("-------------------------------");

				flag=true;
			}

		}
		if(!flag){

				System.out.println("Wrong username or password");

		}
	}
}