It seems like working tho..
package com.codegym.task.task14.task1411;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.time.Period;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/*
User, loser, coder and programmer
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
Person person = null;
String key = null;
while(true) {
key = reader.readLine();
if (key.equals("user")) {
Person.User user = new Person.User();
doWork(user); continue;
}
if (key.equals("loser")) {
Person.Loser loser = new Person.Loser();
doWork(loser); continue;
}
if (key.equals("coder")) {
Person.Coder coder = new Person.Coder();
doWork(coder); continue;
}
if (key.equals("programmer")) {
Person.Programmer programmer = new Person.Programmer();
doWork(programmer); continue;
} else break;
}
{
// Create an object. Item 2
doWork(person); // Call doWork
}
}
public static void doWork(Person person) {
if (person instanceof Person.User) {
((Person.User) person).live();
}
if (person instanceof Person.Loser) {
((Person.Loser) person).doNothing();
}
if (person instanceof Person.Coder) {
((Person.Coder) person).writeCode();
}
if (person instanceof Person.Programmer) {
((Person.Programmer) person).enjoy();
}
}
}