Java Program To Sort Elements Of Java ArrayList

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import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;

public class JavaArrayListSort {
	public static void main(String[] args) {

		ArrayList<Integer> arrayList = new ArrayList<Integer>();

		arrayList.add(20);
		arrayList.add(8);
		arrayList.add(121);
		arrayList.add(34);
		arrayList.add(6);
		arrayList.add(3);
		arrayList.add(76);
		arrayList.add(3);
		arrayList.add(76);
		arrayList.add(1);

		System.out.println("Before sorting ArrayList ...");
		Iterator itr = arrayList.iterator();

		while (itr.hasNext()) {

			System.out.println(itr.next());

		}

		Collections.sort(arrayList);

		System.out.println("After sorting ArrayList ...");

		Iterator itr1 = arrayList.iterator();

		while (itr1.hasNext()) {

			System.out.println(itr1.next());
		}
	}
}
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