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package oop;

import java.util.ArrayList;

import java.util.HashMap;

/**

*

* @author qngnhat

*/

public class Unit50_Generic {

public static void main(String[] args) {

ArrayList<AA> al = new ArrayList<AA>();

al.add(new AA());

//Error here

// al.add(new BB());

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

al.get(i).show();

}

HashMap<String, BB> map = new HashMap<String, BB>();

map.put("nez", new BB());

map.put("kiki", new BB());

}

}

class AA{

public void show(){

}

}

class BB{

public void go(){

}

}