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This example could be implemented with the Java 8 merge() but it shows the overall lock-free pattern, which is more general. This example is not related to the internals of the ConcurrentMap but to the client code's use of the ConcurrentMap. For example, if we want to multiply a value in the Map by a constant C atomically:
If the template has a separate documentation page (usually called "Template:template name/doc"), add [[Category:Map templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Map templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last ...
name = Java Name used in the default map caption; image = Java location map plain.svg The default map image, without "Image:" or "File:" image1 = Indonesia Java relief location map.png An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = -4.4 Latitude at top edge of map, in ...
Collection implementations in pre-JDK 1.2 versions of the Java platform included few data structure classes, but did not contain a collections framework. [4] The standard methods for grouping Java objects were via the array, the Vector, and the Hashtable classes, which unfortunately were not easy to extend, and did not implement a standard member interface.
This template is used on approximately 109,000 pages. To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them.
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
For example, Google's copy of the web can be stored in a bigtable where the row key is a domain-reversed URL, and columns describe various properties of a web page, with one particular column holding the page itself. The page column can have several timestamped versions describing different copies of the web page timestamped by when they were ...
The covering area has been adjusted to fit with File:Indonesia Java location map.svg so they can be used in location template, requested by Joe 19:32, 30 January 2018 1,300 × 417 (5.84 MB)