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package com.gmail.vhrushyn;

public class Phone {
	
	private int number;
	private Network myNetwork;

	public Phone(int number) {
		super();
		this.number = number;
		myNetwork = null;
		}

	public Phone() {
		super();
		}

	public int getNumber() {
		return number;
	}

	public void setNumber(int number) {
		this.number = number;
	}

	public void register(Network network) {
		int i = network.getI();
		network.setI(i + 1);
		network.regNum(this.number);
		myNetwork = network;
	}
	public void call(int number) {
		int num = 0;
		for (int n : myNetwork.getRNumbers()) {
			if (n == number) {
				num = number;
				break;
			}
		}
			if (num != 0) {
				System.out.println("Connecting to number: "+number);
				System.out.println("... beeeeeeeep, beeeeeeeep, beeeeeeeeep");
				
			}
			else {
				System.out.println("number "+number+" is not registered in the network");
			}
		}
	
}

package com.gmail.vhrushyn;

import java.util.Arrays;

public class Network {
	int[] rNumbers = new int[100];
	int i = -1;

	public Network() {
		super();
		Arrays.fill(this.rNumbers, 0);
		}
	
	public int[] getRNumbers() {
		return rNumbers;
	}
	
	public void regNum(int number) {
		rNumbers[i] = number;
	}
	
	public int getI() {
		return i;
	}

	public void setI(int i) {
		this.i = i;
	}

}

package com.gmail.vhrushyn;

public class Main {

	public static void main(String[] args) {

		Network net = new Network();
		System.out.println("Network has been created");
		System.out.println("");
		
		// Jack's number
		Phone phOne = new Phone(12345);
		phOne.register(net);
		// Jane's number
		Phone phTwo = new Phone(23456);
		phTwo.register(net);
		// Your number
		Phone phThree = new Phone(34567);
		phThree.register(net);
		
		System.out.println("you try to call Jack (number: 12345)");
		phThree.call(12345);
		System.out.println("");
		System.out.println("... and now you try to call wrong number");
		phThree.call(54321);
		
	}

}