java Programming Glossary: nulls

http://stackoverflow.com/questions/10983573/checking-for-null-what-order

for null what order When checking for nulls I use String str if str null but ive seen if null str Is there..

Redirect System.out and System.err to slf4j

http://stackoverflow.com/questions/11187461/redirect-system-out-and-system-err-to-slf4j

new IOException The stream has been closed. don't log nulls if b 0 return would this be writing past the buffer if count..

Spring MVC : How to perform validation ?

http://stackoverflow.com/questions/12146298/spring-mvc-how-to-perform-validation

using request.getParameter and then manually checking for nulls but I don't want to do all the validation in my Controller...

Is it bad practice to make a setter return “this”?

http://stackoverflow.com/questions/1345001/is-it-bad-practice-to-make-a-setter-return-this

be One mega constructor downside you might pass lots of nulls or default values and it gets hard to know which value corresponds..

How much memory does a Hashtable use?

http://stackoverflow.com/questions/1425221/how-much-memory-does-a-hashtable-use

bytes for object overhead on 64 bit VM. I'm not sure about nulls pointers for nulls may be compressed somehow. share improve..

Java: convert List<String> to a join()d string

http://stackoverflow.com/questions/1751844/java-convert-liststring-to-a-joind-string

with Joiner.on and .join names but also easily deal with nulls Joiner.on and .skipNulls .join names or Joiner.on and .useForNull..

What is the point of the class Option[T]?

http://stackoverflow.com/questions/2079170/what-is-the-point-of-the-class-optiont

because of its interoperability with Java Scala allows nulls just as Java does. So if you use Java libraries if you use badly..

Why is Java BufferedReader() not reading Arabic and Chinese characters correctly?

http://stackoverflow.com/questions/2260325/why-is-java-bufferedreader-not-reading-arabic-and-chinese-characters-correctly

characters. So my System.out.println print shows me nulls one for each failure to translate. I'm using Netbeans 6.8 Mac..

Avoiding “!= null” statements in Java?

http://stackoverflow.com/questions/271526/avoiding-null-statements-in-java

they are participating in and defensively overcheck for nulls. Additionally when writing their own code they tend to rely.. when writing their own code they tend to rely on returning nulls to indicate something thus requiring the caller to check for.. indicate something thus requiring the caller to check for nulls. To put this another way there are two instances where null..

ExecutorService, how to wait for all tasks to finish

http://stackoverflow.com/questions/3269445/executorservice-how-to-wait-for-all-tasks-to-finish

is going to contain a bunch of Future s which will return nulls see definition of Executors.callable . Probably what you want..

Why does ConcurrentHashMap prevent null keys and values?

http://stackoverflow.com/questions/698638/why-does-concurrenthashmap-prevent-null-keys-and-values

of ConcurrentHashMap himself Doug Lea The main reason that nulls aren't allowed in ConcurrentMaps ConcurrentHashMaps ConcurrentSkipListMaps..

Java - Ring Buffer

http://stackoverflow.com/questions/7266042/java-ring-buffer

Handle null value using Guava MapMaker/CacheBuilder

http://stackoverflow.com/questions/8298285/handle-null-value-using-guava-mapmaker-cachebuilder

bugs. I think it's definitely a good idea to avoid using nulls wherever possible and if you can modify your code so that it..

Determine if a String is a valid date before parsing

http://stackoverflow.com/questions/962953/determine-if-a-string-is-a-valid-date-before-parsing

dates stored as String fields. Some records contain blanks nulls some contain strings like this 'dd MMM yy' and some contain..

String.equals() argument ordering

http://stackoverflow.com/questions/9888508/string-equals-argument-ordering

NPEs are exceptionally common. We want to route these nulls out as soon as possible. If you're expecting the reference to..