Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms.... 2. Extending Java class and instanceof...$Array -> newInstance ( $Integer , 2 ); $IntegerArray [ 0 ] = 1 ; $IntegerArray...