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With the inclusion of Metadata Facility for Java (JSR-175) [1] into the J2SE 5.0 release it is possible to utilize attribute-oriented programming right out of the box. XDoclet library makes it possible to use attribute-oriented programming approach in earlier versions of Java.
An attribute in a relational database can be represented as a column or field. In computing, an attribute is a specification that defines a property of an object, element, or file. It may also refer to or set the specific value for a given instance of such. For clarity, attributes should more correctly be considered metadata. An attribute is ...
Example of a web form with name-value pairs. A name–value pair, also called an attribute–value pair, key–value pair, or field–value pair, is a fundamental data representation in computing systems and applications. Designers often desire an open-ended data structure that allows for future extension without modifying existing code or data.
Attribute-driven design [1] [2] (also called ADD or Attribute-driven design method) is a methodology to create software architectures that takes into account the quality attributes of the software. It was previously known as the Architecture Based Design Method (or ABD), but due to trademark issues the name was changed to Attribute-driven ...
Attributes are closely related to variables. A variable is a logical set of attributes. [1] Variables can "vary" – for example, be high or low. [1] How high, or how low, is determined by the value of the attribute (and in fact, an attribute could be just the word "low" or "high"). [1] (For example see: Binary option)
load the int value 2 onto the stack iconst_3 06 0000 0110 → 3 load the int value 3 onto the stack iconst_4 07 0000 0111 → 4 load the int value 4 onto the stack iconst_5 08 0000 1000 → 5 load the int value 5 onto the stack idiv 6c 0110 1100 value1, value2 → result divide two integers if_acmpeq a5 1010 0101 2: branchbyte1, branchbyte2
A snippet of Java code with keywords highlighted in bold blue font. The syntax of Java is the set of rules defining how a Java program is written and interpreted. The syntax is mostly derived from C and C++. Unlike C++, Java has no global functions or variables, but has data members which are also regarded as global variables.
With Java 5.0, additional wrapper classes were introduced in the java.util.concurrent.atomic package. These classes are mutable and cannot be used as a replacement for the regular wrapper classes. Instead, they provide atomic operations for addition, increment and assignment. The atomic wrapper classes and their corresponding types are: