最细节的ArraylList,如果有啥问题可以题
ArrayList array=new ArrayList();
array.add("ahjsdj");
array.add("zhou");
array.add("zhou1");
System.out.println(array);

array.add(0,"asdf");
System.out.println(array);

System.out.println(array.remove("zhou1"));
System.out.println(array);

System.out.println(array.remove(1));
System.out.println(array);

System.out.println(array.set(1,"hong"));
System.out.println(array);

System.out.println(array.get(1));
System.out.println(array);

System.out.println(array.size());
System.out.println(array);

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