Convert a byte array to integer in Java and vice versa
Use the classes found in the java.nio namespace, in particular, the ByteBuffer. It can do all the work for you.
types
Check if a value is an object in JavaScript
UPDATE: This answer is incomplete and gives misleading results. For example, null is also considered of type object in JavaScript, not to mention several other edge cases. Follow the recommendation below and move on to other “most upvoted (and correct!) answer”: Original answer: Try using typeof(var) and/or var instanceof something. EDIT: This answer gives an idea of how to examine variable’s properties, but … Read more
Pointtype command for gnuplot
You first have to tell Gnuplot to use a style that uses points, e.g. with points or with linespoints. Try for example: Output: Now try: Output: You may also want to look at the output from the test command which shows you the capabilities of the current terminal. Here are the capabilities for my pngairo terminal:
Double precision floating values in Python?
Decimal datatype Unlike hardware based binary floating point, the decimal module has a user alterable precision (defaulting to 28 places) which can be as large as needed for a given problem. If you are pressed by performance issuses, have a look at GMPY
Double precision floating values in Python?
Decimal datatype Unlike hardware based binary floating point, the decimal module has a user alterable precision (defaulting to 28 places) which can be as large as needed for a given problem. If you are pressed by performance issuses, have a look at GMPY
Which is the difference between Long.valueOf(0) and 0L in Java?
Nothing. will undergo autoboxing. The compiler replaces it with: You can see this if you decompile your class, e.g. using javap. Decompiles to: So how it is better initialize a variable, considering memory consumption and time complexity? Because they are semantically identical, the memory consumption and time complexity is also identical. Instead, focus on what is actually … Read more