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  2. Parameter (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Parameter_(computer...

    Parameters are also thought of as either formal or actual. Formal generic parameters are used in the definition of generic classes. In the example below, the class HASH_TABLE is declared as a generic class which has two formal generic parameters, G representing data of interest and K representing the hash key for the data:

  3. 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.

  4. Generics in Java - Wikipedia

    en.wikipedia.org/wiki/Generics_in_Java

    These type variables are known as the formal type parameters of the method. The form of the formal type parameter list is identical to a type parameter list of a class or interface. A constructor can be declared as generic, independently of whether the class that the constructor is declared in is itself generic. A constructor is generic if it ...

  5. Function (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Function_(computer...

    Define formal parameters with a name and data type for each; Assign a data type to the return value, if any; Specify a return value in the function body; Call a function; Provide actual parameters that correspond to a called function's formal parameters; Return control to the caller at the point of call; Consume the return value in the caller

  6. Parameter - Wikipedia

    en.wikipedia.org/wiki/Parameter

    In computer programming, two notions of parameter are commonly used, and are referred to as parameters and arguments—or more formally as a formal parameter and an actual parameter. For example, in the definition of a function such as y = f(x) = x + 2, x is the formal parameter (the parameter) of the defined function.

  7. Generic programming - Wikipedia

    en.wikipedia.org/wiki/Generic_programming

    A generic formal parameter is a value, a variable, a constant, a type, a subprogram, or even an instance of another, designated, generic unit. For generic formal types, the syntax distinguishes between discrete, floating-point, fixed-point, access (pointer) types, etc. Some formal parameters can have default values. To instantiate a generic ...

  8. Wildcard (Java) - Wikipedia

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

    If the return type of a method is the type parameter, the result (e.g. of type ?) can be referenced by a variable of the type of the upper bound (or Object). In the other direction, the wildcard fits no other type, not even Object: If ? has been applied as the formal type parameter of a method, no actual parameters can be passed to it. However ...

  9. Computer program - Wikipedia

    en.wikipedia.org/wiki/Computer_program

    Local variables declared without the static prefix, including formal parameter variables, [62] are called automatic variables [59] and are stored in the stack. [58] They are visible inside the function or block and lose their scope upon exiting the function or block. The heap region is located below the stack. [58] It is populated from the ...