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  2. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    import static java.lang.System.out; //'out' is a static field in java.lang.System public class HelloWorld {public static void main (String [] args) {/* The following line is equivalent to System.out.println("Hi World!"); and would have been incorrect without the import declaration. */ out. println ("Hello World!");}}

  3. Command-line argument parsing - Wikipedia

    en.wikipedia.org/wiki/Command-line_argument_parsing

    PHP uses argc as a count of arguments and argv as an array containing the values of the arguments. [ 4 ] [ 5 ] To create an array from command-line arguments in the -foo:bar format, the following might be used:

  4. List of Java keywords - Wikipedia

    en.wikipedia.org/wiki/List_of_Java_keywords

    Although reserved as a keyword in Java, const is not used and has no function. [2] [26] For defining constants in Java, see the final keyword. goto Although reserved as a keyword in Java, goto is not used and has no function. [2] [26] strictfp (added in J2SE 1.2) [4] Although reserved as a keyword in Java, strictfp is obsolete, and no longer ...

  5. Java (programming language) - Wikipedia

    en.wikipedia.org/wiki/Java_(programming_language)

    Java is a high-level, general-purpose, memory-safe, object-oriented programming language. It is intended to let programmers write once, run anywhere , [16] meaning that compiled Java code can run on all platforms that support Java without the need to recompile. [17]

  6. List of Unicode characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Unicode_characters

    In contrast, a character entity reference refers to a character by the name of an entity which has the desired character as its replacement text. The entity must either be predefined (built into the markup language) or explicitly declared in a Document Type Definition (DTD). The format is the same as for any entity reference: &name;

  7. Entry point - Wikipedia

    en.wikipedia.org/wiki/Entry_point

    In most of today's popular programming languages and operating systems, a computer program usually only has a single entry point.. In C, C++, D, Zig, Rust and Kotlin programs this is a function named main; in Java it is a static method named main (although the class must be specified at the invocation time), and in C# it is a static method named Main.

  8. Type signature - Wikipedia

    en.wikipedia.org/wiki/Type_signature

    In the Java virtual machine, internal type signatures are used to identify methods and classes at the level of the virtual machine code. Example: The method String String. substring (int, int) is represented in bytecode as Ljava / lang / String. substring (II) Ljava / lang / String;. The signature of the main method looks like this: [2]

  9. Comparison of programming languages (string functions)

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

    Definition find_character(string,char) returns integer Description Returns the position of the start of the first occurrence of the character char in string. If the character is not found most of these routines return an invalid index value – -1 where indexes are 0-based, 0 where they are 1-based – or some value to be interpreted as Boolean ...