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What does it mean: The serializable class does not declare a static final serialVersionUID field? [d

I have the warning message given in the title. I would like to understand and remove it. I found already some answers on this question but I do not understand these answers because of an overload with technical terms. Is it possible to explain this issue with simple words? ...
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What's the rationale for null terminated strings?

...ments general rules by a few conventions. In both BCPL and B a string literal denotes the address of a static area initialized with the characters of the string, packed into cells. In BCPL, the first packed byte contains the number of characters in the string; in B, there is no count ...
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Difference between java.util.Random and java.security.SecureRandom

...ource code (JDK 7u2), from a comment on the method protected int next(int bits), which is the one that generates the random values: This is a linear congruential pseudorandom number generator, as defined by D. H. Lehmer and described by Donald E. Knuth in The Art of Computer Programming,...
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What is Virtual DOM?

Recently, I looked at Facebook's React framework. It uses a concept called "the Virtual DOM," which I didn't really understand. ...
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Fast Bitmap Blur For Android SDK

...ion that I'm developing I'm looping through the pixels of an image to blur it. This takes about 30 seconds on a 640x480 image. ...
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Struct like objects in Java

Is it completely against the Java way to create struct like objects? 20 Answers 20 ...
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Why not use exceptions as regular flow of control?

...per second in the normal course of operation ? I have. The program was quite complex (it was a distributed calculation server), and a slight modification at one side of the program could easily break something in a totally different place. I wish I could just have launched the program and wait fo...
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Which cryptographic hash function should I choose?

The .NET framework ships with 6 different hashing algorithms: 9 Answers 9 ...
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Multithreading: What is the point of more threads than cores?

I thought the point of a multi-core computer is that it could run multiple threads simultaneously. In that case, if you have a quad-core machine, what's the point of having more than 4 threads running at a time? Wouldn't they just be stealing time (CPU Resources) from each other? ...
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Check if a variable is a string in JavaScript

...fied though). This won't work as expected in the case of strings created with new String(), but this is seldom used and recommended against[1][2]. See the other answers for how to handle these, if you so desire. The Google JavaScript Style Guide says to never use primitive object wrappers. Doug...