1 Remove all elements from a collection; use the DELETE method without any arguments. 2 Remove the first element in a collection; to remove one element, pass the index value to DELETE. 3 Remove all the elements between the specified low and high index values. This form of DELETE works with all three kinds of collections.
1 Remove the first element in a collection; to remove one element, pass the index value to DELETE. 2  This form of DELETE can be used only with an associative array or a nested table. 3  Remove all the elements between the specified low and high index values. 1 This form of DELETE works with all three kinds of collections. 2  Remove the first element in a collection; to remove one element, pass the index value to DELETE. 3  This form of DELETE can be used only with an associative array or a nested table. 4  Remove all the elements between the specified low and high index values. Here are some examples: 1  Remove all elements from a collection; use the DELETE method without any arguments. 2  This form of DELETE works with all three kinds of collections. 3  Remove the first element in a collection; to remove one element, pass the index value to DELETE. 1 This form of DELETE works with all three kinds of collections. 2  Remove the first element in a collection; to remove one element, pass the index value to DELETE. 3  This form of DELETE can be used only with an associative array or a nested table. 4  Remove all the elements between the specified low and high index values. For example: To remove an element from the list, use the remove(index) or remove(Object) method which removes the element at the specified index or by object reference. For example: 1  Remove the element at the 3 rd position in the list: 2  java.lang.IndexOutOfBoundsException is thrown. The get() method is used to retrieve an element from the list at a specified index. For example, the following code gets an element at 2 nd position in the array list and an element at 4 th position in the linked list: Note that the getFirst() and getLast() methods are specific to the LinkedList class. Here are some examples: 1  Remove all elements from a collection; use the DELETE method without any arguments. 2  Remove the first element in a collection; to remove one element, pass the index value to DELETE. 3  Remove all the elements between the specified low and high index values. 1 This form of DELETE works with all three kinds of collections. 2  Remove the first element in a collection; to remove one element, pass the index value to DELETE. 3  This form of DELETE can be used only with an associative array or a nested table. 4  Remove all the elements between the specified low and high index values. List is a fundamental and widely-used collection type in the Java Collections Framework. In this tutorial, we’ll see characteristics of list collections, how to use list implementations for day-to-day work and look at examples of common programming practices when using lists. The get() method is used to retrieve an element from the list at a specified index. For example, the following code gets an element at 2 nd position in the array list and an element at 4 th position in the linked list: Note that the getFirst() and getLast() methods are specific to the LinkedList class. Java 8. Using Java 8 this snippet will find the first element in an array list. Java 8 Streams API contains Stream.Filter which will return elements that match a predicate. By passing a java predicate via a lambda expression, the stream will filter any elements that match a value of 3. You must either wrap your collection in a list (new ArrayList(c)) or use c.toArray() since Collections have no notion of index or order. You shouldn't. a Collection avoids talking about indexes specifically because it might not make sense for the specific collection. For example, a List implies some form of ordering, but a Set does not. We must instead use get() or set() to access elements at indexes. IsEmpty: Loop: We can loop over the sub-list, or access its elements, using a zero-based index. So the first element in the sub-list is at index 0. Set: If we set an element in the sub-list to a value, this is reflected in the original list. The indexes are automatically translated. Tip: The toArray method will allocate a new array and return its reference unless it receives a large enough array.
http://www.oracle.com/technetwork/issue-archive/2012/12-jul/o42plsql-1653077.html http://www.oracle.com/technetwork/issue-archive/2012/12-jul/o42plsql-1653077.html http://www.codejava.net/java-core/collections/java-list-collection-tutorial-and-examples http://www.oracle.com/technetwork/issue-archive/2012/12-jul/o42plsql-1653077.html http://www.codejava.net/java-core/collections/java-list-collection-tutorial-and-examples http://www.leveluplunch.com/java/examples/find-element-in-list/ http://stackoverflow.com/questions/1047957/best-way-to-get-value-from-collection-by-index http://www.dotnetperls.com/arraylist-java
how to get index value of list in collection by passing a value in java