Skip to main content

Why Java does not have pointers ?

Java does not have pointers. This was an intentional decision by the creators of Java, because most people would agree that having pointers creates a lot of potential for bugs in the code – pointers can be quite confusing, especially to new programmers. Because arrays and strings are provided as class types in Java, there is no need for pointers to those constructs. By not allowing pointers, Java provides effectively provides another level of abstraction to the programmer.

Java has references, but not pointers

But, what Java does have is references, which are different from pointers. Here are some of the differences between references in Java and pointers in C++:

Comments

Popular posts from this blog

What exactly means MVW design pattern ?

What is a MVW framework? The abbreviation stands for 'Model - View - Whatever'.  Well there are many different JavaScript frameworks available , all invented for the same purpose. They all try to separate the presentation logic from the business logic where JavaScript holds the model and logic, and html the presentation layer. Quick overview : You can change the model without changing the view and vice-versa Unit testing is easy These are the core benefits of using such a framework. By separating presentation and business logic changes to the code are easier to implement and take less time. Another benefit is that code can be reused from a controller thus saving more time. Angularjs makes the code also shorter in comparison to other frameworks, which improves code stability. Less code means minor potential for bugs. For several years +AngularJS was closer to MVC (or rather one of its client-side variants), but over time and thanks to many refactorings

File Upload & Download With ng-cordova File Transfer Plugin In Ionic Framework

Using the AngularJS extension set , ngCordova , with Ionic Framework and the Apache Cordova File Transfer plugin, you can easily upload files to a remote server and download files from a remote server. 1.Create the project ionic start Test blank cd Test ionic platform add android 2.Add Plugin org.apache.cordova.file-transfer https://github.com/apache/cordova-plugin-file-transfer This plugin allows you to upload and download files. This plugin defines global FileTransfer, FileUploadOptions Constructors. Although in the global scope, they are not available until after the deviceready event . Installation cordova plugin add cordova plugin add cordova-plugin-file-transfer     2.    org.apache.cordova.file             https://github.com/apache/cordova-plugin-file             This plugin implements a File API allowing read/write access to files residing on the    device.             Installation cordova plugin add cordova-pl

Steps To Create Cordova Plugin

Introduction A plugin is a package of injected code that allows the Cordova webview within which the app renders to communicate with the native platform on which it runs. Plugins comprise a single JavaScript interface along with corresponding native code libraries for each supported platform. Due to following reason, we will go for plugin development To get the native capabilities of the device in the cordova based app Build the common functionality across the number of Cordova application(Reusability) Prerequisites For the creation of plugin you need to install plugman . npm install -g plugman Plugin Structure Decide Plugin ID & Name The plugin ID should be unique Plugin name should follow the convention “cordova.plugin.[your.plugin.name]” Create the structure Use the following command to create the plugin with plugin ID “cordova.plugin.test” and name “Test”. plugman create --name Test --