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java Programming Glossary: multiplyIs shifting bits faster than multiplying and dividing in Java? .NET? http://stackoverflow.com/questions/1168451/is-shifting-bits-faster-than-multiplying-and-dividing-in-java-net shifting bits faster than multiplying and dividing in Java .NET Shifting bits left and right is.. question Most compilers today will do more than convert multiply or divide by a power of two to shift operations. When optimizing.. operations. When optimizing many compilers can optimize a multiply or divide with a compile time constant even if it's not a power..
What does the ^ operator do in Java? http://stackoverflow.com/questions/1991380/what-does-the-operator-do-in-java isn't. You basically read the digits left to right and you multiply your result so far by 10 before adding the next digit. In table..
How to generate a random BigInteger value in Java? http://stackoverflow.com/questions/2290057/how-to-generate-a-random-biginteger-value-in-java exclusive . My initial thought was to call nextDouble and multiply by n but once n gets to be larger than 2 53 the results would..
Why use a prime number in hashCode? http://stackoverflow.com/questions/3613102/why-use-a-prime-number-in-hashcode this question Because you want the number you are multiplying by and the number of buckets you are inserting into to have.. 8 buckets to insert into. If the number you are using to multiply by is some multiple of 8 then the bucket inserted into will..
Generating random numbers in a range with Java http://stackoverflow.com/questions/363681/generating-random-numbers-in-a-range-with-java order to get a specific range of values first you need to multiply by the magnitude of the range of values you want covered. Math.random..
Best way to represent a fraction in Java? http://stackoverflow.com/questions/474535/best-way-to-represent-a-fraction-in-java the denominator if exponent 0 tmpNumerator tmpNumerator.multiply BigInteger.ONE.shiftLeft exponent else tmpDenominator tmpDenominator.multiply.. exponent else tmpDenominator tmpDenominator.multiply BigInteger.ONE.shiftLeft exponent 1.mantissa 1 mantissa 2^52.. 2^52 2^52 mantissa 2^52 tmpDenominator tmpDenominator.multiply BigInteger.valueOf 0x10000000000000L tmpNumerator tmpNumerator.multiply..
Moving decimal places over in a double http://stackoverflow.com/questions/4937402/moving-decimal-places-over-in-a-double move a decimal place over to make it 12.34 So to do this I multiply .1 to 1234 two times kinda like this double x 1234 for int i..
Performance of Java matrix math libraries? [closed] http://stackoverflow.com/questions/529457/performance-of-java-matrix-math-libraries the performance of Java libraries for matrix math e.g. multiply inverse etc. For example JAMA http math.nist.gov javanumerics.. compared some of these libraries. I attempted to matrix multiply a 3000 by 3000 matrix of doubles with itself. The results are..
Unix epoch time to Java Date object http://stackoverflow.com/questions/535004/unix-epoch-time-to-java-date-object appears to be a seconds based epoch value so you'd want to multiply the long from parseLong by 1000 to convert to milliseconds which..
How to use wait and notify in Java? http://stackoverflow.com/questions/886722/how-to-use-wait-and-notify-in-java wait and notify in Java I have 2 matrices and I need to multiply them and then print the results of each cell. As soon as one.. So my idea is to make the printer thread wait until the multiplyThread notifies it that the correct cell is ready to be printed.. at java.lang.Object.notify Native Method at multiplyThread.run multiplyThread.java 49 Exception in thread Thread..
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