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CollectionsExample.java
Output
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CollectionsExample.java
import java.util.ArrayList; import java.util.Collections; import java.util.List; /* Example of: synchronizedList(List<T> list) method Parameters: list - the list to be "wrapped" in a synchronized list. Returns: a synchronized view of the specified list. */ public class CollectionsExample { public static void main(String[] args) { ArrayList<Integer> arrayList = new ArrayList<Integer>(); arrayList.add(2000); arrayList.add(3000); arrayList.add(4000); arrayList.add(1000); System.out.println("arrayList : " + arrayList + "\n"); /* * Returns a synchronized (thread-safe) list backed by the specified * list. * * In order to guarantee serial access, it is critical that all access * to the backing list is accomplished through the returned list. */ List<Integer> synchronizedList = Collections .synchronizedList(arrayList); System.out.println("synchronizedList : " + synchronizedList + "\n"); } }
arrayList : [2000, 3000, 4000, 1000] synchronizedList : [2000, 3000, 4000, 1000]Click the below Image to Enlarge
Java : Collection Framework : Collections (SynchronizedList) |
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