java Programming Glossary: multiplication

Is 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 left and right is apparently faster than multiplication and division operations on most all CPUs if you happen to be.. by a shift. This can be a major clock cycle saver since multiplication is often much faster than a division operation. Henry Warren's..

Java floating point high precision library

http://stackoverflow.com/questions/277309/java-floating-point-high-precision-library

are they A requirement for me is that it implements a multiplication algorithm that is better than the naive multiplication algorithm.. a multiplication algorithm that is better than the naive multiplication algorithm that takes 4 times as much time for a 2 times larger.. a little speed check on them which just uses addition and multiplication. The result is that for a relatively small number of digits..

Why does Java's hashCode() in String use 31 as a multiplier?

http://stackoverflow.com/questions/299304/why-does-javas-hashcode-in-string-use-31-as-a-multiplier

chosen because it is an odd prime. If it were even and the multiplication overflowed information would be lost as multiplication by 2.. the multiplication overflowed information would be lost as multiplication by 2 is equivalent to shifting. The advantage of using a prime.. but it is traditional. A nice property of 31 is that the multiplication can be replaced by a shift and a subtraction for better performance..

Fast transcendent / trigonometric functions for Java

http://stackoverflow.com/questions/523531/fast-transcendent-trigonometric-functions-for-java

faster without losing much precision. On my machine a multiplication takes 1.5ns and java.lang.Math.sin 46ns to 116ns . Unfortunately..

JQuery, Spring MVC @RequestBody and JSON - making it work together

http://stackoverflow.com/questions/5908466/jquery-spring-mvc-requestbody-and-json-making-it-work-together

private int addition private int subtraction private int multiplication public int getAddition return addition public void setAddition.. subtraction public int getMultiplication return multiplication public void setMultiplication int multiplication this.multiplication.. return multiplication public void setMultiplication int multiplication this.multiplication multiplication You can test this setup by..

What are the rules for evaluation order in Java?

http://stackoverflow.com/questions/6800590/what-are-the-rules-for-evaluation-order-in-java

will happen before the second addition and that the multiplication will happen before the second addition. It does not tell you.. and D will be called It also does not tell you whether the multiplication happens before or after the first addition. It would be perfectly.. first addition happens before the second addition and the multiplication happens before the second addition. Clearly we can do the calls..

How to use wait and notify in Java?

http://stackoverflow.com/questions/886722/how-to-use-wait-and-notify-in-java

to waiting and so on.. So I have this thread that does the multiplication public void run int countNumOfActions 0 How many multiplications.. public void run int countNumOfActions 0 How many multiplications have we done int maxActions randomize Maximum number of actions.. 0 Rows counter System.out.println The result matrix of the multiplication is while i creator.getmThreads .length synchronized this try..