Making a Collection Read-Only : Collections « Collections Data Structure « Java

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Java » Collections Data Structure » Collections Screenshots  Making a Collection Read-Only     import java.util.ArrayList; import java.util.Arrays; 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 Main {   public static void main(String[] argv) throws Exception {     List stuff = Arrays.asList(new String[] { "a", "b" });     List list = new ArrayList(stuff);     list = Collections.unmodifiableList(list);     try {       list.set(0, "new value");     } catch (UnsupportedOperationException e) {            }     Set set = new HashSet(stuff);     set = Collections.unmodifiableSet(set);     Map map = new HashMap();     map = Collections.unmodifiableMap(map);   } }                  Related examples in the same category 1. Collections.min with Comparator 2. Minimum and maximum number in array 3. Shuffling the Elements of a List or Array: use Collections.shuffle() to randomly reorder the elements in a list 4. Shuffle the elements in the array 5. Create an empty collection object 6. Collections.reverse 7. Use Collections.sort to sort custom class and user defined Comparator 8. Collections.shuffle to shuffle a list 9. Collections.fill 10. Demonstrates the use of final collections 11. Use Collections.shuffle to shuffle list 12. Shuffle generic list 13. Create List containing n Copies of Specified Object Example 14. Create and demonstrate an immutable collection. 15. Sort and Search a LinkedList. 16. Finding an Element in a Sorted List 17. Use reverse(), rotate(), and shuffle(). 18. This program demonstrates the random shuffle and sort algorithms