import se.lth.cs.pt.io.*;
import java.lang.String;
import java.lang.StringBuilder;
import java.lang.Object;
import java.util.*;
import java.lang.*;

class inl3 {
    public static void main(String[] args){
	new inl3().run();
    }

    Register reg = new Register(100);

 void run() {

	String name;
	String nbr;
	int val;

	do {
	    System.out.println(" Vad vill du gora?");
	    System.out.println("1. Lagg in ny person ?");
	    System.out.println("2. Ta bort person ?");
	    System.out.println("3. Sok pa del av namn ?");
	    System.out.println("4. Se vem som har givet nummer ?");
	    System.out.println("5. Skriv ut alla personer ?");
	    System.out.println("0. Asvluta ?");
	    val = Keyboard.nextInt("Ange kommando 0 till 5 !");

	    switch(val) {
	    case 1:
		name = Keyboard.nextLine("Ange vilket namn du vill lagga in: ");
		nbr = Keyboard.nextLine("Ange vilket nummer du vill lagga in: ");
		if (reg.insert(name, nbr)){
		    System.out.println("grattis");
		} else {
		    System.out.println("gar inte");
		}
		break;
	    case 2:
		name = Keyboard.nextLine("ta bort?: ");
		if(reg.remove(name)){
		    System.out.println("grattis personen ar borta");
		}else{
		    System.out.println("gar inte");
		}
		break;
	    case 3:
		name = Keyboard.nextLine("Ange del av namn");

		break;
	    case 4:
		nbr = Keyboard.nextLine("Ange nummer: ");

		for (Person e : reg.list){
		    System.out.println(e);
		}
		//System.out.println(reg.findByNumber(nbr));
		break;
	    case 5:
		break;
	    case 0:
		break;
	    }
	} while(val != 0);
    }

    class Person {
	private String name;
	private String nbr;

	public Person(String name, String nbr){
	    this.name = name;
	    this.nbr = nbr;
	}

	public String getName(){
	    return name;
	}
	public String getNumber(){
	    return nbr;
	}

    }

    class Register {
	public List<Person> findByNumber;
	private Person[] pers;
	private int size;
	public List<Person> list;

	public Register(int Max) {
 	    pers = new Person[Max];
	    size=0;
	    findByNumber = new ArrayList<Person>();
	}

	public boolean insert(String name, String nbr) {
	    if (containsName(name)){
		return false;
	    }
	    pers[size] = new Person(name, nbr);
	    size ++;

		return true;

	}

	public boolean remove(String name){
	    for (int i  = 0; i<size; i++) {
		if ( pers[i].getName().equals(name) ){

		    pers[i] = pers[size-1];
		    pers[size-1] = null;
		    size--;
		    return true;
		}
	    }
	    return false;
	}

	public boolean containsName(String name){
	    for (int i  = 0; i< size;i++) {
		if ( pers[i].getName().equals(name) ){
		    return true;
		}
	    }
	    return false;
	}


	//List<Person> findByPartOfName(String partOfName) {
	//}


	Public List<Person> findByNumber(String nbr) {
	    list = new ArrayList<Person>();
	    for (int k = 0; k<size; k++) {
		if (pers[k].getNumber().equals(nbr)) {
		    list.add(pers[k]);
		}
	    }
	    return list;


	}



	/* List<Person> findAll(){
 for (int k = 0; k<size; k++) {
		if (pers[k].getNumber().equals(nbr)) {
		    findByNumber.add(pers[k]);
		    }*/
    }
}