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java Programming Glossary: integersSort on a string that may contain a number http://stackoverflow.com/questions/104599/sort-on-a-string-that-may-contain-a-number integer then compare based on the numeric values of those integers. For example I want the following strings to end up in order.. 12 ddd jpeg2000 eee As you can see there might be other integers in the string so I can't just use regular expressions to break..
Fastest way to determine if an integer's square root is an integer http://stackoverflow.com/questions/295579/fastest-way-to-determine-if-an-integers-square-root-is-an-integer a lookup table is impratical since there are about 2 31.5 integers whose square is less than 2 63 . Here is the very simple and.. to be even faster. In a run over the first 1 billion integers the solution only required 34 of the time that the original.. want this function to work with all positive 64 bit signed integers and it was still slower than Math.sqrt . Binary chop was even..
http://stackoverflow.com/questions/299068/how-slow-are-java-exceptions as i 0xFFFFFFF it is both an AND operation between two integers. The size of the number plays no role. AND on 32 BIT always..
http://stackoverflow.com/questions/3130311/weird-integer-boxing-in-java for example cache all characters and shorts as well as integers and longs in the range of 32K 32K. share improve this answer..
What is the point of the diamond operator in Java 7? http://stackoverflow.com/questions/4166966/what-is-the-point-of-the-diamond-operator-in-java-7 used the raw type and lost all type checking List Integer integers new LinkedList strings Generics exist to provide compile time.. since the right side is actually generic List Integer integers new LinkedList strings The diamond operator however allows the..
Java string to date conversion http://stackoverflow.com/questions/4216745/java-string-to-date-conversion I want to break out the month the day and the year as integers so that I can use Date date new Date date.setMonth .. date.setYear..
Why doesn't Java support unsigned ints? http://stackoverflow.com/questions/430346/why-doesnt-java-support-unsigned-ints ints Why doesn't Java include support for unsigned integers It seems to me to be an odd omission given that they allow one.. on unexpectedly large input. Furthermore using unsigned integers can be a form of self documentation as they indicate that the.. supposed to be negative. Lastly in some cases unsigned integers can be more efficient for certain operations such as division...
Why the result of 1/3=0 in java? http://stackoverflow.com/questions/4685450/why-the-result-of-1-3-0-in-java share improve this question The two operands 1 and 3 are integers therefore integer arithmetic division here is used. Declaring..
Left padding integers with zeros in Java http://stackoverflow.com/questions/473282/left-padding-integers-with-zeros-in-java padding integers with zeros in Java How do you left pad an int with zeros in.. converting to a string I'm basically looking to pad out integers up to 9999 with the leading zeros. E.g. 1 0001 I know this is..
How to nicely format floating numbers to String without unnecessary decimal 0? http://stackoverflow.com/questions/703396/how-to-nicely-format-floating-numbers-to-string-without-unnecessary-decimal-0 is unsigned 32 bit. But now I have to print these pseudo integers but the problem is they are also mixed in with actual doubles... share improve this question If the idea is to print integers stored as doubles as if they are integers and otherwise print.. idea is to print integers stored as doubles as if they are integers and otherwise print the doubles with the minimum necessary precision..
Java On-Memory Efficient Key-Value Store http://stackoverflow.com/questions/10064422/java-on-memory-efficient-key-value-store can have multiple values maximum 2 3 whose key are 50 bit Integers and values are 32 bit maximum Integers. Now my requirements.. key are 50 bit Integers and values are 32 bit maximum Integers. Now my requirements are Fast Insertion of Key Value pair allowing..
Restricting JTextField input to Integers http://stackoverflow.com/questions/11093326/restricting-jtextfield-input-to-integers JTextField input to Integers I know that this question must have been asked and answered..
http://stackoverflow.com/questions/13098143/java-integer-constant-pool it is the same case with Integer Constants also. So for Integers Integer i1 127 Integer i2 127 System.out.println i1 i2 True..
When comparing two Integers in Java does auto-unboxing occur? http://stackoverflow.com/questions/1514910/when-comparing-two-integers-in-java-does-auto-unboxing-occur comparing two Integers in Java does auto unboxing occur I know that if you compare.. However What happens when you are comparing two boxed Integers and want to compare either equality or less than greater than..
When to use primitive and when reference types in Java http://stackoverflow.com/questions/2509025/when-to-use-primitive-and-when-reference-types-in-java class and vice versa Autoboxing will turn 1 2 3 into Integers from ints. List Integer numbers Arrays.asList 1 2 3 int sum.. ints. List Integer numbers Arrays.asList 1 2 3 int sum 0 Integers from the numbers List is unboxed into ints. for int number numbers..
http://stackoverflow.com/questions/2864840/treemap-sort-by-value 0 prints false Related questions When comparing two Integers in Java does auto unboxing occur NO Is it guaranteed that new..
Why does int num = Integer.getInteger(“123”) throw NullPointerException? http://stackoverflow.com/questions/3123349/why-does-int-num-integer-getinteger123-throw-nullpointerexception that new Integer i i in Java YES When comparing two Integers in Java does auto unboxing occur NO Java noob generics over..
Integers caching in Java [duplicate] http://stackoverflow.com/questions/3131136/integers-caching-in-java caching in Java duplicate Possible Duplicate Weird Java Boxing..
Are Integers in Java little endian or big endian? http://stackoverflow.com/questions/362384/are-integers-in-java-little-endian-or-big-endian Integers in Java little endian or big endian I ask because I am sending..
Primitive type 'short' - casting in Java http://stackoverflow.com/questions/477750/primitive-type-short-casting-in-java and how integer arithmetic is to be computed. Java Integers Signed Unsigned long 64 bit int 32 bit short 16 bit char 16..
Why aren't Integers cached in Java? http://stackoverflow.com/questions/5277881/why-arent-integers-cached-in-java aren't Integers cached in Java I know there are similar posts on the topic.. to the OP is mistaken in his assumption of correctness. Integers DO respond correctly to by the general Java community's expectation..
Integer wrapper class and == operator - where is behavior specified? http://stackoverflow.com/questions/5581913/integer-wrapper-class-and-operator-where-is-behavior-specified 127 and for values between 128 and 127 inclusive the Integers are put in a cache and returned multiple times while higher..
Synchronizing on an Integer value [duplicate] http://stackoverflow.com/questions/659915/synchronizing-on-an-integer-value just doesn't provide such a facility unless you're using Integers in a small range that is dependable across different JVMs. If..
How to convert an ArrayList containing Integers to primitive int array? http://stackoverflow.com/questions/718554/how-to-convert-an-arraylist-containing-integers-to-primitive-int-array to convert an ArrayList containing Integers to primitive int array I'm trying to convert an ArrayList containing.. built in to do it automatically public static int convertIntegers List Integer integers int ret new int integers.size for int.. with lists such as LinkedList public static int convertIntegers List Integer integers int ret new int integers.size Iterator..
How != and == operators work on Integers in Java? http://stackoverflow.com/questions/9824053/how-and-operators-work-on-integers-in-java and operators work on Integers in Java The following code seemed really confusing to me since.. keyword equals operator share improve this question Integers are cached for values between 128 and 127 so Integer i 127 will..
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