Java Collections checkedQueue() Method21 Mar 2025 | 2 min read The checkedQueue() is a method of Java Collections class which returns a dynamically typesafe view of the specified Queue. If an element inserted of the wrong type, it will result in an immediate ClassCastException. SyntaxFollowing is the declaration of checkedQueue() method: Parameter
ReturnsThe checkedQueue() method returns a dynamically typesafe view of the specified Queue. ExceptionsClassCastException Compatibility VersionJava 1.8 and above Example 1Output: Type safe view of the Queue is: [A, B, C, D] Example 2Output: Type safe view of the Queue is: [55, 66, 66, 77, 88, 77] Example 3Output: [1, 2, 5] Exception in thread "main" java.lang.ClassCastException: Attempt to insert class java.lang.String element into collection with element type class java.lang.Integer at java.base/java.util.Collections$CheckedCollection.typeCheck(Collections.java:3038) at java.base/java.util.Collections$CheckedQueue.offer(Collections.java:3188) at myPackage.CollectionCheckedQueueExample3.main(CollectionCheckedQueueExample3.java:12) Next TopicJava Collections Class |
Java Collections Method The method of Java Collections class is used to get the starting position of the first occurrence of the specified target list within the specified source list. It returns -1 if there is no such occurrence in the specified list. Syntax Following is...
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Java Collections Method The method of Java Collections class is used to get a synchronized (thread-safe) sorted map backed by the specified sorted map. Syntax Following is the declaration of method: public static <K,V> SortedMap<K,V> synchronizedSortedMap(SortedMap<K,V> m) Parameter Parameter Description Required/Optional m It is the sorted map which will be wrapped in...
2 min read
Java Collections Method The method of Java Collections class copies all of the elements from one list into another list. In this method, the size of the destination list must be greater than or equal to the size of the source list. Syntax Following is the...
3 min read
Java Collections Method The method of Java Collections class is used to get a List Iterator that has no elements. Syntax Following is the declaration of method: public static <T> ListIterator<T> Parameter This method does not accept any parameter. Returns The method returns the list Iterator that...
2 min read
Java Collections Method The method of Java Collections class is used to get a synchronized (thread-safe) navigable map backed by the specified navigable map. Syntax Following is the declaration of method: public static <K,V> NavigableMap<K,V> synchronizedNavigableMap(NavigableMap<K,V> m) Parameter Parameter Description Required/Optional m It is the navigable map which will be wrapped in...
2 min read
Java Collections Method The method of Java Collections class is used to return a set backed by the specified map. The resulting set displays the same ordering, concurrency, and performance characteristics as the backing map. Syntax Following is the declaration of method: public static <E> Set<E>...
2 min read
Java Collections Method The is a Java Collections class method which returns a comparator that imposes the reverse of the natural ordering on the objects. There is two different types of Java method which can be differentiated depending on its parameter. These are: Java...
3 min read
Java Collections Method The method of Java Collections class is used to get a synchronized (thread-safe) collection backed by the specified collection. Syntax Following is the declaration of method: public static <T> Collection<T> synchronizedCollection(Collection<T> c) Parameter Parameter Description Required/Optional c It is the collection to be "wrapped" in a synchronized collection. Required Returns The ...
2 min read
Java Collections Method The is an inbuilt method of Java Collections class. This method is used to get a dynamically typesafe view of the specified Navigable Set. If any attempt of inserting an element whose value has the wrong type, it will through an...
2 min read
Java Collections Method The method of Java Collections class is used to get a synchronized (thread-safe) collection backed by the specified list. Syntax Following is the declaration of method: public static <T> List<T> synchronizedList(List<T> list) Parameter Parameter Description Required/Optional list It is the list which will be wrapped in a synchronized list. Required Returns The...
2 min read
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