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# Spring Boot Using Hikari Connection Pool Connection Pool
In software engineering, a connection pool is a cache of database connections maintained so that the connections can be reused when future requests to the database are required. Connection pools are used to enhance the performance of executing commands on a database. Opening and maintaining […]
FastDateFormat is a fast and thread-safe version of SimpleDateFormat.To obtain an instance of FastDateFormat, use one of the static factory methods: getInstance(String, TimeZone, Locale), getDateInstance(int, TimeZone, Locale),getTimeInstance(int, TimeZone, Locale), or getDateTimeInstance(int, int, TimeZone, Locale)
Since FastDateFormat is thread safe, you can use a static member […]
Take a look for RandomStringUtils and RandomUtils. Apache Common-langs make a simple way to do it. RandomUtils is a Utility library that supplement the sandart Random class. RandomStringUtils is an operations for random Strings. Currently private high surrogate characters are ignored. These are Unicode characters that fall between the values 56192 (db80) and 56319 (dbff) […]
SystemUtils help us to know java system properties. We Don’t need get manually. let check this snipset code
And here are the results of our code snippet above:
Strings is a part of google Guava librarys. Strings is Static utility methods pertaining to String or CharSequence instances.
Strings helps us to :
Check Null Value Pad String Repeat String Check Prefix or Sufix
Let See The example code below :
And here are the results of our code snippet […]
Another Blog says Google Guava Splitter is Faster , Whatsss…?? 10 Times , Seriously ?? We need to how Splitter Guava Work and how to use it. For the First time wee need to read Google Guava Splitter Documentation.
Extracts non-overlapping substrings from an input string, typically by recognizing appearances of a separator sequence. This separator […]
Joiner is part library of google guava, this class help us to join a List and Map. An object which joins pieces of text (specified as an array, Iterable, varargs or even a Map) with a separator. It either appends the results to an […]
Awesome… that is Word i can say first, for Google Guava Table.
Guava table is a part of library guava. A collection that associates an ordered pair of keys, called a row key and a column key, with a single value. A table may be sparse, with only a small fraction of row key / column […]
A collection that maps keys to values, similar to Map, but in which each key may be associated with multiple values. You can visualize the contents of a multimap either as a map from keys tononempty collections of values:
a → 1, 2 b → 3
… or as […]
What is StopWatch ?
StopWatch is part of Google’s Guava library. An object that measures elapsed time in nanoseconds. It is useful to measure elapsed time using this class instead of direct calls to System.nanoTime() for a few reasons:
An alternate time source can be substituted, for testing or performance reasons. As documented by […]
