ArrayList<ArrayList> array = new ArrayList();
ArrayList<String> a1 = new ArrayList();
ArrayList<String> a2 = new ArrayList();
ArrayList<String> a3 = new ArrayList();
ArrayList<String> a4 = new ArrayList();
a1.add("1");
a2.add("1");
a3.add("1");
a4.add("1");
array.add(a1);array.add(a2);array.add(a3);array.add(a4);
--------------------------------------------------------
array.add(a1);array.add(a2);array.add(a3);array.add(a4);
Iterator<ArrayList> it = array.iterator();
while(it.hasNext()){
ArrayList list = it.next();
Iterator<String> its = list.iterator();
while(its.hasNext()){
System.out.println(its.next());
}
}
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