ArrayList indexOf () returns wrong index? java android arraylist. I have a problem with ArrayList. I'm using ArrayList like this: private ... ... <看更多>

Java 集合框架存在 List 接口，表示：元素有序排列的集合序列（Sequence），也被称为线性 ... boolean addAll(int index, Collection<? extends E> c) ... ... <看更多>

Java Source Code here:http://ramj2ee.blogspot.com/2014/10/java-collection-framework-arraylist_82.htmlTo ... ... <看更多>

To find the position of an element in an array, you use the indexOf() method. This method returns the index of the first occurrence the element that you want to ... ... <看更多>

I need to find the index of an element in a List , similar to indexOf method provided by Java API. My current solution is to iterate over the list to find the ... ... <看更多>