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STRINGS

 Strings are generally immutable in nature., Whereas StringBuffer & String Builder are mutable  Reason - Security is the reason for Strings they are made immutable. because with strings you can able to access databases and files. sometimes strings store passwords & usernames that cannot be modified StringBuffer - mutable, thread-safe StringBuilder - mutual, not thread-safe 'String' - Not a keyword, It is not a primitive data type, it is a derived type Security is the reason for Strings they are made immutable. because with strings you can able to access databases and files. sometimes strings store passwords & usernames which cannot be modified. String Constant Pool : It  is a Special memory Region where JVM stores String Instances What is the String Constant Pool? The  String Constant Pool  (also known as the  String Intern Pool ) is a special area within the Java heap where  string literals  are stored. When you create a string liter...

COOL facts about mobile phones

 18  Amazing facts about mobiles definitely  will surprise you 

1.Motorola was the first company to manufacture the Mobile Phone.






The prototype handheld phone used by Dr. Cooper weighed 1.1 kg and measured 23 cm long, 13 cm deep and 4.45 cm wide. The prototype offered a talk time of just 30 minutes and took 10 hours to re-charge

John F. Mitchell Motorola's chief of portable communication products and Cooper's boss in 1973, played a key role in advancing the development of handheld mobile telephone equipment. Mitchel successfully pushed Motorola to develop wireless communication products that would be small enough to use anywhere and participated in the design of the cellular phone

2.The first call from a cell phone was made 45 years ago 

 

The first handheld cellular phone was made on April 3, 1973, by Motorola engineer Martin copper by sixth avenue in New york while walking between 53rd and 54th streets. 


3.There’s a Bono in every iPhone.


Open the Music function on your iPhone. Scroll over to the "Artists" icon on the bottom of the screen. See that silhouette? That's Bono, lead singer of the rock band U2.

 

 4 .Nearly 95 percent of phones in Japan are now waterproof because most of the youngsters use them in shower.



5.Did you know that mobile phone throwing is a national sport in Finland?



Most of us, attentive and caring smartphone users, go to great lengths to protect our gadgets from harm. We buy armor cases and tempered glass screen protectors. We grip our smartphones with the force of an angered Darth Vader choke-holding a guilty imperial officer. And yet, here are the fine and ever so slightly withdrawn people from Finland doing something completely counter-intuitive — turning phone destruction into competitive sports! We're not even joking, welcome to the Mobile Phone Throwing World Championships! Since 2000, the town of Savonlinna in the southeast of Finland has been the host of this technologically brutish event, with other countries in Europe hosting their own national competitions as the years came and went by.

As with any organized sports event, phone throwing is governed by specialized rules. The organizer provides official WC mobile phones that are used in Mobile Phone Throwing World Championships. There are all kinds of brands and models to choose from. Every contestant can choose the best fitting phone for him/her. During the throw the competitor must stay within the throwing area. If the thrower steps over the area, the throw will be disqualified. The phone must land within the marked throwing sector. The official jury of the competition will accept or disqualify the throw. The jury’s decisions cannot be protested. Period.


Mobile phone throwing also has its Hall Of Fame. In August 2013, the three winners in men’s category were all from Finland. The longest throw was 97,73 metres, and the winner was Riku Haverinen. The second longest throw was 87,88 metres, done by Ilkka Aaltonen. Third was Otto Sammalisto and his throw was 86,09 m. Åsa Lundgren from Sweden was the winner in women’s category. She threw the phone 40,41 metres after just a few times practicing! Second was Louise Van De Ginste, a throw of 39.88 metres. Third was Finnish Tanja Pakarinen with a throw of 36,69 metres.


6.Mobiles have 18 times more bacteria than toilet handle



7.The Highest ever mobile phone bill was $201,000 
 





The Highest ever mobile phone bill was $201,000 and was charged to Celina Aarons. Celina’s brothers were deaf and mute and so communicated via text, one brother sent over 2000 texts and downloaded videos at a cost of over $2000 per vid whilst on a trip to Canada.


8. more people in the world have mobile than toilet


Six of the world's seven billion people have mobile phones  but only 4.5 billion have a toilet, according to a U.N. report. The shocking statistic has prompted the international organisation to launch a global campaign to improve sanitation for the 2.5 billion people whose health is at risk.

9. The Nokia 1100 sold over 250 million, making it the bestselling electrical gadget in history

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It was my dad first mobile too.

The best-selling mobile phone of all time is the Nokia 1100 with sales of a whopping 250 million units over five years.

 According to mobile news website Phone Arena, the best-selling mobile phone of all time is the Nokia 1100 with sales of a whopping 250 million units over five years .The mobile phone industry is currently dominated by rivals Apple and Samsung, as the two companies continue to compete in the market with the release of iPhones and Galaxy devices.Apple and Samsung devices would probably be the top guesses when people are asked what the best-selling mobile phone of all time is. This may be true of recent years, with Apple's recently launched iPhone 6s and iPhone 6s Plus reportedly hitting sales of 13 million units over the first three days of being launched. However, the honor goes to a company that was once the king of mobile phones

According to mobile news website Phone Arena, the best-selling mobile phone of all time is the Nokia 1100 with sales of a whopping 250 million units over five years.

The mobile phone, which is an entry-level device that feature the most basic of functions, was released to the market late in 2003. It did not have a colored touchscreen, a front camera or a curved screen, as the mobile phone was designed to be as simple as a mobile phone can get. It did have a flashlight, a dust-proof case and no-slip rubber grips, with other features being 36 pre-installed monophonic ringtones, interchangeable covers, 50-message capacities, 50 slots for contacts and a standby time of 400 hours between each charge. Of course, the device also had Snake II and Space Impact, which were amazingly popular back then.

Sold with a price tag of only about 1100rs the Nokia 1100's affordability helped catapult it into its best-selling status, before the manufacturing of the mobile phone was halted in 2009. With 250 million units sold, it did not only become the best-selling mobile phone in the world, but also the best-selling electronic device for consumers in the world.


10.Your Mobile phone has more computing power than the computers used for the Apollo 11 moon landing.

 

 


example :


11. .




12 .The average Person unlocks his or her smartphone 110 times a day.


13. In Malaysia it is legal to divorce your partner via text message.


14 .The world’s most expensive I phone 5 was worth us  $15 million .it was made of 135 grams of 24 carat gold and the chassis was inlaid  with 600 white diamonds.






15. IBM sold a smartphone with a touchscreen display input that could send emails and run third party apps already in 1994.





15.  9% of Americans used their smartphone during sex and 12% in the shower

16. It costs less than one dollar to keep your smartphone charged up.


17. In the UK ,Drivers who cause death while using their mobile phones speeding or drunk , face life in prison.

18. Within 3 Minutes of delivery ,90% of Text messages are read.


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