package generics;

import java.util.ArrayList;

import java.util.List;

public class GenBeginLesson {

public static void main(String[] args) {

List list = new ArrayList();

// List<Integer> list = new ArrayList<>();

list.add(1);

list.add("bla");

for (int i = 0; i < list.size(); i++) {

int j = (int)list.get(i);

System.out.println(j);

}

NonGenericCell nonGenericCell = new NonGenericCell();

nonGenericCell.setItem(new Money());

Money money = (Money)nonGenericCell.getItem();

GenericCell<Money> cell = new GenericCell<>();

cell.setItem(new Money());

Money money2 = cell.getItem();

}

}

class Money {}

class NonGenericCell {

Object item;

public Object getItem() {

return item;

}

public void setItem(Object item) {

this.item = item;

}

}

class GenericCell<T> {

T item;

public T getItem() {

return item;

}

public void setItem(T item) {

this.item = item;

}

}