package jihe;
import java.util.ArrayList;
public class test {
public static void main(String[] args) {
// TODO Auto-generated method stub
ArrayList<String> list = new ArrayList<String>();
list.add("欧欧 Q仔");
list.add("亚亚 Q妹");
list.add("菲菲 Q妹");
list.add(3,"美美 Q妹");
System.out.println("总共有"+list.size()+"只企鹅");
System.out.println("分别是:");
System.out.println();
for (int i = 0; i < list.size(); i++) {
System.out.println(list.get(i));
}
list.remove(2);
list.remove("美美 Q妹");
System.out.println();
System.out.println("分别是:");
for (int i = 0; i < list.size(); i++) {
System.out.println(list.get(i));
}
System.out.println();
if(list.contains("美美 Q妹")) {
System.out.println("集合中包含美美的信息");
}else {
System.out.println("集合中不包含美美的信息");
}
}
}