public static void main(String[] args) {
SimpleHashMap2<String, String> m = new SimpleHashMap2<String, String>();
m.putAll(Countries.capitals(15));
System.out.println(m);
System.out.println(m.get("BULGARIA"));
System.out.println(m.entrySet());
m.entrySet().remove(m.entrySet().iterator().next());
System.out.println(m);
m.entrySet().remove(m.entrySet().iterator().next());
System.out.println(m);
m.entrySet().removeAll(m.entrySet());
System.out.println(m);
}
public static void main(String[] args) {
// TODO 自动生成的方法存根
List<String> countrynames = new ArrayList<String>(Countries.names(10));
System.out.println(countrynames);
Collections.sort(countrynames);
System.out.println(countrynames);
for (int i = 0; i < 5; i++) {
Collections.shuffle(countrynames);
System.out.println(countrynames);
}
}