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import java.util.*; public class CollectionsSortExample3 { public static void main(String[] args) { ArrayList<Integer> al=new ArrayList<>(); al.add(Integer.valueOf(201)); al.add(Integer.valueOf(101)); al.add(230);//internally will be converted into objects as Integer.valueOf(230) Collections.sort(al); Iterator<Integer> itr=al.iterator(); while(itr.hasNext()){ System.out.println(itr.next()); } } }
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