Monthly Archives: October 2017

Why Java Doesn’t Support Multiple Inheritance

The main point to be discussed over here is Java does not support multiple inheritance or Java does support? There are lots of people who are still under confusion that it supports but actually it does not support using interface in Java. Even the father of Java has once admitted the fact.

Most of the developers actually projected a false story about the support of multiple inheritance. When compared to concrete classes interface gives flexibility and using single class multiple interfaces can be implemented.

With the help of this you actually get closer to multiple inheritance. The main thing actually done is implementing multiple interfaces and that is not to be done in terms of extending anything or inheriting anything. For including the behaviors and properties of implementing the class there is no free seeking of implementation from parent classes.

Read Also:-Significance Of Abstract Methods and Classes In Java

Multiple Inheritance

The properties and behavior of multiple class to a single is inherited in the Multiple Inheritance. There are some programming languages which are famous in supporting multiple inheritances like Common Lisp, C++ etc.

Lack of multiple inheritance in Java

It is quite clear to us that there is no back up for multiple inheritance in Java. But why? The Java creators took this design decision. There is a very rare usage of keyword and it is quite simple. Though there is a solution for this problem in C++ you will get into a trap.There is no multiple inheritance in Java and therefore no problem. Suppose if there are two classes having the same method there will be only one method in the implementing class and that too will be done by the implementer. Multiple Inheritance is made difficult with the help of dynamic loading of classes.

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Do You Know What Is JSON And Why It Is Used?

JSON is the abbreviation for ‘JavaScript Object Notation’ which is designed to exchange data as a standard format. It is a simple text-based and lightweight data standard, which is intended for the human-readable data exchange.In this tutorial, it is expected that the JSON’s novices possess an elementary knowledge of how the web applications work over the HTTP protocol along with the knowledge of JavaScript.

JavaScript Object Notation is the full form of JSON and it is meant for standard exchange of data. It is quite a simple text-based and nonheavy data standard which is meant for the legibility of human data exchange. A basic knowledge is possessed by JSON novices and that is what is expected in this tutorial. We will focus on theJSON novices elementary knowledge on the working of web applications over the HTTP protocol including the knowledge of JavaScript.

Read Also:- 4 Different Features of Javascript

Things to note for JSON

  • JSON’s abbreviation is JavaScript Object Notation

  • Douglas Crockford stated the JSON format

  • .json is the extension filename for JSON

  • Application/JSON is the internet media type for JSON

  • Easily readable by human

  • Public.json is the Uniform Type Identifier

Applications of JSON data format

  • For browser extensions and websites, JSON data format is widely used in the programming language written by JavaScript language.

  • For transmitting the data that is structured between a client and server in the web applications JSON data format is used.

  • In the process of serialization and transmission, JSON data format is frequently used for the structured data over the network.

  • In the programming of Web Services and APIs, JSON data format is used for providing public data.

  • JSON data format is used for offering public data in the programming of web services.

  • The scope of use is widening because of the language-independent data format with other programming languages.

Read More:- Uses and applications of JavaScript

Characteristics of JSON data format

  • It is very easy to read and write

  • It is not very heavy and is text based

  • There is language independence in JSON format and it can use with lots of programming languages like JavaScript, PHP, PERL, Java/J2EE, Python, C, C++, etc.

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Best Tips For Safe java Programming

It is high time that you should know about the security threats in technology that are increasing around the world drastically. Earlier it was considered to be single credit card numbers which were stolen and but currently, you can find another story of where you can find lots of financial records revealed like the Experian discovery. It is not an easy to task to write a code and therefore for providing bulletproof code which is approximate most of the auditors, engineers, architects, and managers know that there are lots of things that could go wrong with the code. It is not possible to prevent or predict beforehand but it is possible to reduce the risk.

Here are few tips for offering a highly secure code.

1) Testing Inputs Rigorously:

For getting into your machine the path that attackers choose are the simplest routes while the code opens. If this program of yours has been linked to the internet then there is a possibility that someone will look into your codes or access it as it opens. An instance for a vulnerable path into software is nothing but an overflow of the buffer developed by inefficient C programmers who will allow the character string till it reaches zero. Earlier the data packets were logged arbitrarily as the attackers discovered and wrote the programming stack and memory till the terminating zero is never sent.

Read More :  Java Programming Language and It’s Security Level

2) Store only what is required :

If you want to email someone then it is just better to store the email address and nothing more to avoid unnecessary storage. Disk space, processing time are all costed if you store extra information thereby making space for the hackers to target. Most of the programmers are habituated to store unnecessary data thereby leaving a trail of data for anyone to find. Try to make it simple.

3) Just don’t rely on passwords :

Acceptance of simple passwords by some of the programs are quite dangerous and it also adds fuel to the fire. N-factor authentication is the solution for implementing it and it tosses various distinct hurdles in the user’s way when they log in. If you send a text message from a random number and asking them to provide number along with passwords is an example. If the user is not having any mobile coverage or the battery is dead then this is the best solution to provide.

Read More :  Why Do Most People Prefer Career In Java Programming ?

4) Requirements Negotiation :

If project requirements are considered by the developers and they must think about the need to realize the value of security and how to avoid the problems at the end of the day. At the beginning of the development is the perfect time to talk it out with project managers when you can negotiate those requirements.

5) Use more required encryption :

As there is another step added to the process and it makes debugging more tough the most underused concept is encryption as it includes another step to the process and makes much tougher debugging. It is very hard to find the errors in a system and the data has a pile of numbers which is enigmatic and is much more harder.

You can learn Java programming to become a successful professional in this field.

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