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In this example you can show the various collection methods like: Collections.synchronizedCollection, Collections.synchronizedList, Collections.synchronizedSet, Collections.synchronizedMap.
The methods is used to manipulate with HashMap(), HashSet() and ArrayList().
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class MainClass {
public static void main(String[] args) {
Collection c = Collections.synchronizedCollection(new ArrayList());
List list = Collections.synchronizedList(new ArrayList());
Set s = Collections.synchronizedSet(new HashSet());
Map m = Collections.synchronizedMap(new HashMap());
}
}
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