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  2. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    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.

  3. Initialization-on-demand holder idiom - Wikipedia

    en.wikipedia.org/wiki/Initialization-on-demand...

    The implementation of the idiom relies on the initialization phase of execution within the Java Virtual Machine (JVM) as specified by the Java Language Specification (JLS). [3] When the class Something is loaded by the JVM, the class goes through initialization. Since the class does not have any static variables to initialize, the ...

  4. Initialization (programming) - Wikipedia

    en.wikipedia.org/wiki/Initialization_(programming)

    Here, the construct : re(0), im(0) is the initializer list. Sometimes the term "initializer list" is also used to refer to the list of expressions in the array or struct initializer. C++11 provides for a more powerful concept of initializer lists, by means of a template, called std::initializer_list.

  5. Comparison of C Sharp and Java - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_C_Sharp_and_Java

    Java C# Arrays are implicitly direct ... Fields and initialization Java C# Fields: Yes: ... A closure is an inline function that captures variables from its lexical ...

  6. Comparison of programming languages (array) - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_programming...

    In addition to support for vectorized arithmetic and relational operations, these languages also vectorize common mathematical functions such as sine. For example, if x is an array, then y = sin (x) will result in an array y whose elements are sine of the corresponding elements of the array x. Vectorized index operations are also supported.

  7. Comparison of Java and C++ - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Java_and_C++

    Java only allocates memory via object instantiation. Arbitrary memory blocks may be allocated in Java as an array of bytes. Java and C++ use different idioms for resource management. Java relies mainly on garbage collection, which can reclaim memory, [7] while C++ relies mainly on the Resource Acquisition Is Initialization (RAII) idiom. This is ...

  8. final (Java) - Wikipedia

    en.wikipedia.org/wiki/Final_(Java)

    The blank final, which was introduced in Java 1.1, is a final variable whose declaration lacks an initializer. [ 9 ] [ 10 ] Previous to Java 1.1, a final variable was required to have an initializer. A blank final, by definition of "final", can only be assigned once. i.e. it must be unassigned when an assignment occurs.

  9. Lazy initialization - Wikipedia

    en.wikipedia.org/wiki/Lazy_initialization

    The lazy initialization technique allows us to do this in just O(m) operations, rather than spending O(m+n) operations to first initialize all array cells. The technique is simply to allocate a table V storing the pairs ( k i , v i ) in some arbitrary order, and to write for each i in the cell T [ k i ] the position in V where key k i is stored ...