Option is a good thing that most people really don't know how to use!
OverviewNullPoInterException, ChInese name:Null poInter exceptionNPE, also known as NPE, is one of the most common error anomalies In software systems.Long ago, the Google Guava project IntroducedOptionalNull poInter exceptionNullTo expect programmers to write code that is both neat and more readable...
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The sales of air frying pan dropped precipitously, with several major shortcomings outstanding. Is there a way out for small household appliances?
followThe air frying pan was all the rage for a time, and was once called the "God frying pan" by frying lovers. However, the air frying pan, which has sprung up like mushrooms, has suffered Waterloo this year...
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Why are people who set up floor stalls most afraid of others putting their phones on scales? Thanks to colleagues sharing secrets!
Why are people who set up floor stalls most afraid of others putting their phones on scales? Thanks to colleagues sharing secrets! As the weather gradually turns hot, many friends have noticed that there are more and more street vendors outside, especially fruits and vegetables. As these small vendors sell in large quantities, the items on the street vendors are much cheaper than those in the store...
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How to achieve all-round and all-weather monitoring of the "sky, sky, and sky"? Mount Wuyi National Park hand in intelligent answer sheet
The protection of the ecological environment cannot be separated from technological means. In the intelligent management center of Mount Wuyi National Park, through the comprehensive application of intelligent technology, it has realized the omni-directional and all-weather monitoring and management of the "heaven, earth and sky" of the park...
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Catching up with and surpassing Hongya Cave and Kuanzhai Alley, it is expected to become a new place for wealth creation in Guang'an, a top tier city in the world
On Teacher's Day five years ago, the media, accustomed to speculation, never expected that Jack Ma would announce his Alibaba inheritance plan and announce his retirement one year later to engage in education and public welfare. You know, Biden is 80 years old and still wants to run for president...
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In 1980, a Saudi Arabian flight successfully made a forced landing but no one disembarked. After rescue workers opened the door, all bodies were found
I believe many people have this experience. Compared to other means of transportation, there are many things that need to be paid special attention to when taking a plane...
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Shanzhai Twitter has 100 million users. Musk couldn't sit still and directly called Xiao Zha a "pervert"
With the number of users of Meta's Twitter clone Threads approaching 100 million, Elon Musk continues to lash out at Mark Zuckerberg.Since the launch of the new platform last week, Musk has been highly critical of Threads, which is Instagram's latest companion application and Twitter's direct competitor...
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Urgent notice! Don't hang up when you receive this call
The 95120 National Telephone Traffic Control System has been officially launched in disease control institutions at all levels nationwide on June 26, 2023. The system has functions such as unified external call numbers, AI intelligent external calls, call reminders and hanging up SMS, and multi terminal applications...
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Besides cutting off supply of gallium and germanium, China also has an ace! If we fight it out, the West will hurt our muscles and bones
Follow.Thank you for your support and encouragement...
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If you dare to use this feature, uninstall WeChat! "Tencent responded anxiously
If the WeChat message can display 'read'Do you support it?Today (12th)If WeChat shows readGet on the Hot SearchCurrently, it has caused 440 million reads13000 discussionsIn the discussion, the vast majority of netizens expressed opposition to this. In the Weibo vote of nearly 200000 people, "Do you want WeChat to display as read?" More than 80% of people chose "do not want"...
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Urgent reminder! Many people have received calls, and many have been taken!
In recent days, many people have received FaceTime calls from strangers.Some people roast that the other side was quite persistent and continued to fight after hanging one...
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The first exposure of the underwater wreckage image of Titan: right at the bow of the Titanic, experts say it may sink vertically in the last minute
A map of the deep charcoal seabed, spliced from sonar images, exposes for the first time the image of the wreckage of the Titan Submersible on the seabed, which is located on the right side of the bow of the Titanic, "very close".Distribution area of Titan wreckage (within the circle)On the 18th of last month, this Submersible carrying five people to investigate the famous sunken ship "Titanic" lost contact after diving in the North Atlantic, causing global concern...
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