WhatsApp: Here are 5 Hidden Functions and Methods that Everyone Should Use

The world of WhatsApp is much bigger than you think. Here are some of the less known functions and methods that you should all use.

All the people who own a smartphone nowadays, know that there is a circle of apps to download almost obligatorily. To do this, each operating system makes available a market with lots of games and applications.

Among the various apps to download, the first ever is of course WhatsApp, application famous all over the world and of which everyone knows now the main functions. But certainly there are many users who do not know some of the most incredible hidden functions ever. Precisely for this reason we are here with the aim of illustrating 5 of them that could certainly serve you in the future.

1. Send messages to unsaved numbers in Address book you can, here’s how

To do this you will need a third party application that you can download from the Google Play Store. This is WhatsDirect – Tool for WhatsApp. Once downloaded, simply enter the telephone number of the unknown person, preceded by the national prefix. Then you write the message and you will see that the initiated conversation will appear in WhatsApp.

2. View the messages in chat without updating the display time

To do this will suffice a single and only really very simple passage but not everyone thinks. When you receive a message you need to read but don’t want to show others that you have just entered, the process is very easy.

Once you get the message you want to read before you do so, disconnect all internet connections. Then enter the app and read the message quietly. Then exit, and reactivate all connections. You will not have left any trace.

3. Deleting messages already sent in WhatsApp

This is a new feature recently arrived on the note app. If you have sent a message by mistake, or you may have regretted it, you can cancel it within 7 minutes of sending and as long as the recipient has not already read it.

Simply hold down the message and choose “Delete for all”. However, the recipient will be able to know that you have deleted a message by the wording in the sticker that says: “The user has deleted this message”.

4. Secure the most important conversations at the top

If you have favorite contacts with which you often message, do not let these scroll down in the chat list. them at the top simply by holding down on the chosen chat and choose the tack symbol at the top of the menu. From now on you will have that conversation always in the first place in the chat list.

5. Do you want to know the exact moment in which a contact enters online? Here’s how to do

To do this there is WhatDog, an application that will send you a notification when a contact you choose accesses WhatsApp. To allow all this, after installing the app from the Play Store, open it and choose the contact you want to know all the movements. You will see that there will be no access that you won’t know.

Samsung Claimed that LG is not a Valid Opponent

Samsung very much fears Apple, always. The two companies contend many primates and many are the disputes and clashes in court. LG, on the other hand, is underestimated by Samsung, indeed, is not minimally taken into account. This is the weak link.

Samsung no longer considers LG one of its competitors in the mobile industry, according to the comments of a company spokesman during the MWC 2018. He was explaining that the latest Samsung smartphones have less app preinstalled than LG. The same representative stated: “We do not see them as our competitors, but I meant Apple”.

Samsung and Apple have an interesting relationship. In some cases, they met in court, with legal action by the way, for patent infringement. While in other cases, promotional videos have been made public to minimize the products, features and services offered on the other. However, this is often seen as a clash between Android and IOS, it is not just a situation Samsung and Apple.

On the contrary, regarding the Android brand, it has always been speculated that Samsung was fighting to maintain its position as a dominant Android smartphone manufacturer. In this area, as time goes by, LG’s ability to compete with Samsung has diminished. The mobile division of the company struggles to keep up.

According to IDC’s data highlighted by the end of 2017, Samsung has occupied a global market share for smartphones of 21.6%, with Apple in second place with 14.7%. The data remained substantially unchanged from the previous year, with the two companies having a market share of 21.1% and 14.6%, respectively. This is contrary to LG which no longer registers itself as an independent entity in the IDC list since the figures of the South Korean writer are now buried within “others”.

With Samsung and Apple’s joint market share for 2017 (36.3%) only barely changing compared to 2016 (35.7%), the drop in LG in the market did not come from Samsung or Apple. Instead, it would seem that the biggest problem of LG is the rise of Chinese producers (such as Huawei, OPPO and Xiao). One aspect that LG itself has detected when it announced its financial results for 2017.

LG minimized by Samsung that does not fear it absolutely

LG in 2013, was recognized by the IDC as a direct competitor – with its 4.8% that placed the company in fourth place, behind Samsung, Apple and Huawei. For a further comparison, in the same year, Huawei’s market share stood at 4.9%, representing a 0.1% market share compared to LG. Even more revealing was the change that was taking effect up to that point. Since the figures for the market share of 2012 showed that Huawei recorded 4% and LG at 3.6%. Therefore, during the twelve months between 2012 and 2013, LG has actually closed the gap on Huawei by 0.4 percent up to only 0.1 percent.

The result is a year-over-year variation for LG and despite Huawei sees a year-over-year increase in market share of almost 1%. While LG was relegated to the “other” field, Huawei managed to maintain its third position with a market share of 10.4%. A little over a year and at the end of 2014, the image was very different for LG. The company was no longer recognized among the top 5 vendors with Lenovo and Xiao’s that completed the list. Since then, he has struggled to regain the traction of the market he saw until 2014. Although the market has become more accessible, with Samsung and Apple they have seen their market share diminish.

Developed a Laser Technique to Detect Hidden Objects

A Stanford University team (United States) has developed an extremely sensitive laser system for producing hidden object images. It reveals a study published in the journal Nature.

Experts focus on developing applications for self-employed vehicles – which do not require a driver – some of which already have similar systems based on laser technology capable of detecting objects around the car. Other possible utilities include the ability to see through the foliage or to provide rescue units with the ability to find people whose position is inhibited by sight.

The Associate Professor Gordon Wetzstein, from the same American university, and one of the research authors, stated that, even if that kind of technology “sounds like Magic”, it’s “really doable.”

Apparently, the Stanford research group is not the only one in developing laser technology methods to capture images of objects. However, where it achieves considerable progress in this field is the creation of an extremely efficient and effective algorithm for processing the final image of that object.
“A substantial challenge”

David Lindell, co-author of the study, noted that “a substantial challenge” in these techniques is to “find an efficient way to recover the three-dimensional structure of the hidden object.”

During their experiments, scientists installed a laser near a highly sensitive proton detector, which could also record a single particle of light. They aimed at a wall with laser light impulses – invisible to the human eye – bouncing on objects that were hidden behind a corner to bounce in the wall and in the detector.

According to Nature, this process currently lasts from two minutes to an hour, depending on the conditions such as illumination and reflectivity of the hidden object. Based on how well the algorithm works, it is believed that it could be accelerated to make the process almost instantaneous.

But before the system is completely ready, scientists must make it work better with daylight and moving objects, like a bouncing ball or a child running, since until now it works particularly well when they detect Reflective objects, such as road signs.

If this technology was now used in a vehicle, it could easily capture images of objects such as road signs or road signs, but could encounter difficulties in detecting people wearing non-reflective clothing. Wetzstein considered that the study represents “a big step forward” in this field which, he ventured, “I hope that benefit all.”

WhatsApp: New Hidden Tricks and Methods that Many Users May Not Know

Even today we propose some of the hidden tricks and methods that WhatsApp allows users. Many of you may not know them all the way down.

As many well know, the most famous and most popular app in the world is definitely WhatsApp. This fantastic application has made it so that the old SMS disappear from the radar, without these being taken into account even in the promo of the various managers.

There are many functions that WhatsApp offers, but at the same time there are many that many do not know. We are in fact here today to show you some method or some trick that you may have missed in the past.

Lock the app with password or imprint from the basic settings

This is one of the most comfortable solutions if you do not want someone to enter your WhatsApp, impicciandosi your business. The comfort is also guaranteed by the fact that you do not have to resort to third-party apps, since everything is feasible through the settings of the phone itself.

All you have to do is go to the “Manage Phone” item by choosing the APP block field later. This is done, you will have all the applications of the smartphone that you can then block. Of course, choose WhatsApp, protecting with imprint and password.

This feature is available every smartphone with Android system. But beware: the menu may change depending on the brand of your smartphone.

Deleting messages after sending them

This fantastic feature was introduced a few days ago, so many users are still in the dark. The whole thing is extremely simple, since the function has been several times anticipated.

In case you send a message to a wrong person, you can delete it without the latter being able to read it. Obviously the conditions persist: You can cancel the message within and not more than 7 minutes of time and especially as long as the recipient has not already read it. In spite of this, this will notice that you have deleted it by the wording that you can see in the picture above.

Know the precise moment in which a contact accesses WhatsApp

No, we’re not talking about just checking the last access. In fact we refer to the exact moment when a person enters online. To do this there is the now known app WhatDog, which will allow us to completely trace the movements on WhatsApp of a designated person.

Through this app we can select a contact and at any time of the day, as well as having the known closed messaging app, we will be able to receive a notification at the exact moment in which it enters online.

Graphene Smartphone: A Revolutionary Material that Will Soon be in Smartphones?

We observe closely that future will have graphene smartphone. Graphene is a material that will be exploited for a series of disruptive, revolutionary technologies. It comes from graphite, which is in pencils, but it is an infinitesimal part, that is an atom, isolated in the laboratory only a decade ago. The reason for its disruptive reach is soon said: As an atom is ultra thin, but it is harder than steel over 200 times. In electronic field can do sparks, thanks to its flexibility, transparency and conductivity (i.e. leads more electrical current than copper). Ultimately, it costs very little: being a material from carbon, much more available in nature than the current and expensive tantalum, cobalt, gold, silver, magnesium, bromine, nickel etc. that we find in smartphones. Didn’t you think there were so many? Well, let’s go back to focusing on the graphene smartphone.

From several parts, research has flourished on this material which has laid the premises for the population to have a day at the disposal of revolutionary products. But it comes from asking:

When will we see the first smartphones based on graphene?

At Mobile World Congress 2018 We have witnessed a whole pavilion dedicated to the applications of graphene in the technology field. We have seen experiments in various fields that have astonished the audience of curious: from cameras that see the invisible, to filters to make drinking water, passing through revolutionary smartphone batteries, ultrafast data transmission systems and solar cells With a much improved efficiency ratio.
But, the question: “When will we see a smartphone based on graphene?” arose spontaneously immediately after the closing of the Barcelona event.

There are currently more than 50,000 patents registered with WIPO in the United States concerning technologies related to graphene.

In fact, so many of those patents have not yet found a fulfillment. The products on the market pertaining to smartphones that use stably the graphene are few. The first that we remember are the earphones of the Chinese house Xiao Mi Pro HD, which contain a diaphragm of graphene to speed up the transmission of the audio signal to 100% and without leakage. Another product on the market that uses graphene are nanocase covers that can cool the batteries of smartphones thanks to the polymers of this material that dissipate the heat outside.

But that’s not enough to satisfy the consumers ‘ belly. Perhaps the most exciting uses of graphene are coming right from the batteries for smartphones, and it seems that Samsung, Apple and Huawei are close to release some prototypes, although starting from different searches (always with nanocase in the middle). Then there is also the graphene in the next flexible or foldable screens always built by Samsung and LG, but we will not see them before the end of the year 2018.

The technological sector that will benefit more

Given that the graphene will not replace the dear old silicon (without which we would not be talking about digital technology in general), already since the MWC 2018 we realized that the industry that will benefit most from this revolutionary material, well before telephony, is The 5g and the IoT. The application of graphene in telecommunications will solve many problems of speed and energy consumption in data transmission. The companies Ericsson, TIM and Comau have presented at MWC in Barcelona their project of Cloud robotics, bringing to light the potential of 5g in the perspective of the development of some innovative services IoT and smart solutions for Industry 4.0.

For the massive use in telephony, unfortunately, we must wait a few more years.

Hidden Methods in Java

The Java language uses an object-oriented programming where processing consists of exchanging messages between objects, which are the information pulled out of Reality (object abstraction). Objects are formed by attributes that define their characteristics and in the practice of programming are identified by the variables that the object uses to store data. An object to access its memory (attributes) and then accordingly to perform operations and change its state does so through methods. The ownership of objects to incorporate both attributes and methods into them is called encapsulation, in fact it is created as a capsule, a conceptual barrier that isolates the object from the external environment (information masking). Very often the object was built by a programmer other than the one who will use it. The latter is interested to know how to interact with the object, what are the methods that makes available and how to call them. The programmer is like the mechanic who knows the details of the operation of the car while the pilot can ignore these details. This way of understanding objects induces to consider an object as a black box. Details on the structure characteristics of the object are hidden inside by guaranteeing the Information Hiding.

Interaction between Objects

In Object Oriented Programming, the interaction between objects takes place as a mechanism called Message Exchange. An object, by sending a message to another object, can ask for a method to be executed. A message consists of three parts:

  • Recipient
  • Selector
  • Argument list

The recipient is the object to which the message is addressed.

The selector indicates the method you want to activate: it must be one of the methods made available to the recipient object.

The argument list is the set of parameters that are passed to the object when you ask to activate the method.

In a language of Pseudocodifica we can write: Recipient. Selector (list of topics).

Access to attributes

Summing up what has been said, the objects have encapsulated methods and attributes within them. Messages are the interface to objects that hides and does not allow you to see how the (Encapsulation/masking) methods are implemented. The interface allows however the use of the methods in this sense also the attributes are hidden in the object. To be able to read or change the value of an attribute, you might use a method that performs the requested operation.


The term indicates the possibility of a project to take on multiple forms, as for methods that can undergo different implementations within the class hierarchy.

The automobile and motorcycle subclasses inherit the Accelera method from the means of transport. This is guaranteed by polyformism through dynamic linkage. You define dynamic because the association between the considered object and the correct method to execute is performed during run time. Programs can have dynamic and static linking. Static when it is the compiler that is concerned with creating associations between elements (through for example variables: During compilation is linked their type). Once this link is created, it can no longer be changed (the static link is possible if you know all the information at the time of compilation). In the dynamic link is not possible during the compilation know all that information necessary to the link that can be perfected only during the Run time.


Object-Programming changes the way you understand a program because during execution it corresponds to a set of class instances (objects) that evolve, interact, create new instances, and magazines. By following this definition, objects are entities that exist during the execution of a program. When the program also ends the objects no longer exist. It is said that an object is persistent if it survives the single execution, in order to be used in another session and this is accomplished by recording the object in the mass memory.

Vodafone: Best Smartphone Rates in March 2018

Vodafone presents its new promotional tariff for smartphones with calls, SMS and data plan included. The offers are interesting and have many advantages and related options included.

Vodafone offers offers for all tastes and for every age group, from the youngest to the youngest, meeting also for the month of March 2018 the needs of a large public consumer.

For this period the operator has in store attractive offers and rates that include not only calls to Italy and abroad but also interesting bundles of SMS and Giga to be exploited in full freedom on Vodafone network at the speed of 4G.

Vodafone: Phone fares for all smartphones

The red operator today grants a rich Happy Friday celebrating the anniversary of the women’s Day with a days delay. But do not worry, the manager has in store additional offers equally interesting for all users. Especially the Smart, Red and Pro promotions that we will take into consideration in detail.

Vodafone Smart

With Vodafone Smart we will have at our disposal 500 minutes of calls to all without a click to reply, 100 SMS to all national mobile phone numbers and 2GB of high speed 4g data traffic. In addition, only for this period, the manager also grants the free Pass and Social option to navigate without consuming the gigas of your promotion. All in promotion to €10 every 4 weeks instead of €12 for payment with debit on credit card or bank account.

Vodafone Pro

The Vodafone Pro promotional campaign, on the other hand, allows you to have a richer bundle from the point of view of the calls and the SMS and the Giga 4G. In this case we will have 1,000 minutes to all (fixed and mobile), 1,000 SMS messages and 5GB of data traffic always in 4g at no extra cost. Included in the price we will also find Vodafone Pass & social to chat and surf the social without limits and without deadlines. The cost of the promo is on offer at only €15 every 4 weeks instead of €20 as originally planned.

Vodafone RED

Vodafone RED closes the circle on what are the Universal Basic offers proposed by the carrier and provides not only unlimited minutes to all without a click to the answer but also 1,000 minutes to international numbers that add up to an SMS plan Unlimited and a data bundle of 10GB in 4g LTE with HotSpot service included.

In this case it is not necessary to adhere to Vodafone exclusive and we can use the GB of our offer to chat, surf and watch videos on other devices such as TV, tablets and notebooks without additional expenses. As with other offers the promo provides the service included Pass & Social to navigate without consuming Giga. The total cost of the offer is €25 every 4 weeks for payment by credit card or C/C.

We recall that the costs of the offer will adjust soon to the new regulations in force for the law 172/2017 and foresee an increase of 8.6% in renewal with consequent rise of traffic thresholds for calls, SMS and also Internet traffic keeping The annual expenditure is unchanged.

Vodafone Shake Remix

Shake Remix is addressed to the under 30 and in general to all millennial who can not give up a rich bundle of data to browse online, see social networks and enjoy streaming broadcasts and direct videos.

Thanks to this new promotion Vodafone we will be sure to have only available what we are looking for. In fact it will be possible to personalize your offer according to your needs. We could choose to have more GB or maybe a wider range of minutes for calls and SMS. In this case we can reduce waste to zero and count on offers tailored to us, not to mention the fact that we can change our mix at every renewal.

For example it will be possible to have 100 minutes, 100 SMS and 1GB at only €7 with service Tidal Premium and Vodafone TV included without additional costs, or choose a plan with minutes and SMS Unlimited and 20GB at a cost of €25.50 every 4 weeks while remaining the services Premium above included. The offer is highly customizable and suitable for all our specific requests. You can access the offer directly from MyVodafone app for Android and IOS mobile devices.

Vodafone Junior

For the little ones the operator offers the standard Junior rate which provides 100 minutes of calls, 50 SMS and 4GB of data traffic 4g to surf at maximum speed to only €9 every 4 weeks.

For further details and conditions please refer to the operator’s official website where you will get support for managing the SIM and active offers on your smartphone. Come back to see us for more promotions.

The Smartphone’s Day: Futuristic Technologies are Knocking at the Door

Smartphones have the days counted. In a short time they will be obsolete and will be replaced by revolutionary technologies. According to the media, although for the next ten years people will not be able to give up the use of his favorite gadgets, one day the smartphone “will die”, just as the fax is already a thing of a distant past.

Entrepreneurs and technology companies such as Elon Musk, Microsoft, Facebook, Amazon and several ambitious start-ups have already started to lay the groundwork for what has been called “the ultimate destruction of smartphones”. And innovations that could replace our iPhone, Samsung and Nokia will be very similar to science-fiction technologies.
Virtual Assistants

Personal assistants like Bixby, already allow us to control all the functions with the voice. The company south has positioned itself as a pioneer of technologies and devices that can be managed with words. According to experts, the next devices will be completely new concepts of human interaction with the technological world.

IPhone X has focused on the introduction of augmented reality in our daily lives. It is not a distant future: all these global changes, more and more perfected, will arrive in the next two years. Because Amazon Echo, Sony PlayStation VR and Apple Watch have a fair success, experts expect these devices to combine together into one interconnected technology ecosystem.

Augmented reality

Microsoft, Facebook, Google are developing augmented reality series. These new technologies will be able to project detailed 3d images directly to our eyes. According to some rumors, even the giant of Cupertino would be working on this same product.

Digital Vision

In the near future, augmented reality will replace the smartphone, television and all other devices with a single screen. And this seems more than logical: Why do we need a device in my pocket if all calls, chats, movies and games can be projected directly into our eyes without distorting reality?


Devices like Amazon Echo and Apple’s AirPods are becoming increasingly popular and necessary in the modern world. In this way, since intelligent artificial systems such as Siri (Apple), Alexa (Amazon), Bixby (Samsung) and Corta (Microsoft) will become even more intelligent, users will use audio data, integrated with video projected over the eyes.


Recently, Elon Musk has inaugurated its new company Neuralink, which will be responsible for the development of a ‘ neural interface ‘, through which users can exchange opinions. The device, according to Musk, will be ready in ten years.