void add (int index, Object obj) : add method with two parameters is used to insert an element at specific position. Index denotes the position to which we want to insert the element i.e. obj. boolean ...

To reset ArrayList we have two options, one is to use clear () method and another is to use removeAll (). We dont need to worry if size of the ArrayList is small i.e. 10 to 100. But if ArrayList size ...

} } Code Output without Debugger Full ArrayList: [ [Work0, Work1, Work2]] Targetted location of ArrayList: Work0 Breakpoint should work! End Environment Operating System: Windows 10 x64 JDK version: ...

But primitive types aren’t objects, and that presents a problem. For example, all the collection classes in the JDK hold data as objects. If a developer has a set of int values they want to store in ...