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java Programming Glossary: lookupsJava On-Memory Efficient Key-Value Store http://stackoverflow.com/questions/10064422/java-on-memory-efficient-key-value-store you need to store the data the faster that insertions and lookups will be. I found that for 110 million entries with a load factor..
Why is HttpUrlConnection throwing an SSLException while on a mobile data connection? http://stackoverflow.com/questions/12885247/why-is-httpurlconnection-throwing-an-sslexception-while-on-a-mobile-data-connect some mobile carriers will return an IP address for DNS lookups that should have failed as non existent. The server that the.. was an anomaly. On carriers that intercept failed DNS lookups navigating a Web browser to a non existent host will show a..
Using java map for range searches http://stackoverflow.com/questions/1314650/using-java-map-for-range-searches use HashMaps this should be the most time efficient O 1 lookups though you have more work at setup time and you use more space... space. Use a NavigableMap and use floorEntry key to do the lookups. This should be less time efficient O log N lookups but more.. do the lookups. This should be less time efficient O log N lookups but more space efficient. Here's a solution using NavigableMaps..
Why pool Stateless session beans? http://stackoverflow.com/questions/134791/why-pool-stateless-session-beans to invocation. So by pooling beans you reduce these lookups to only happening when the bean is created. Three you can use..
Java Hashmap: How to get key from value? http://stackoverflow.com/questions/1383797/java-hashmap-how-to-get-key-from-value also to map a value to a key thus allowing you to perform lookups in both directions. Obtaining a key for a value is supported..
How does UserTransaction propagate? http://stackoverflow.com/questions/4118353/how-does-usertransaction-propagate Security propagation works in a similar way as do JNDI lookups which magically point to the right module's or component's java..
What optimizations can I expect from Dalvik and the Android toolchain? http://stackoverflow.com/questions/4912695/what-optimizations-can-i-expect-from-dalvik-and-the-android-toolchain as the upper bound of a for loop Bounds checking on array lookups. Will the toolchain eliminate this in certain conditions like..
How do HashTables deal with collisions? http://stackoverflow.com/questions/4980757/how-do-hashtables-deal-with-collisions to that bucket. This is why a bad hash function can make lookups in hash tables very slow. Option 2 If the hash table entries..
Conveniently map between enum and int / String http://stackoverflow.com/questions/5021246/conveniently-map-between-enum-and-int-string to fill a map int enum then caches that and uses it for lookups. Would work but I'd have to copy this method identically into..
Why spawning threads in Java EE container is discouraged? http://stackoverflow.com/questions/533783/why-spawning-threads-in-java-ee-container-is-discouraged means is that you cannot get an InitialContext and do JNDI lookups to access other system resources such as JMS Connection Factories..
Android Performance - 'Avoid Internal Getters/Setters' http://stackoverflow.com/questions/6716442/android-performance-avoid-internal-getters-setters calls are expensive much more so than instance field lookups. It's reasonable to follow common object oriented programming..
effect of changing String using reflection http://stackoverflow.com/questions/6932772/effect-of-changing-string-using-reflection It will no longer compare equal to its original value so lookups will fail. I know this question is about Java but I wrote a..
Binary search in a sorted (memory-mapped ?) file in Java http://stackoverflow.com/questions/736556/binary-search-in-a-sorted-memory-mapped-file-in-java original program is a Perl module that does string prefix lookups in a 500 GB sorted text file using binary search essentially..
How do I use a Spring bean inside an OSGi bundle? http://stackoverflow.com/questions/8039931/how-do-i-use-a-spring-bean-inside-an-osgi-bundle your context inside of your bundle and have some class do lookups via ctx.getBean . If this is the case just create the context..
what's the difference between #{} ${} and %{}? http://stackoverflow.com/questions/9421567/whats-the-difference-between-and a request wrapper that will defer to the value stack for lookups first then fall back to the normal JSP evaluation if there's..
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