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  2. Run-time type information - Wikipedia

    en.wikipedia.org/wiki/Run-time_type_information

    A Java typecast behaves similarly; if the object being cast is not actually an instance of the target type, and cannot be converted to one by a language-defined method, an instance of java.lang.ClassCastException will be thrown.

  3. Scala (programming language) - Wikipedia

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

    The return operator is unnecessary in a function (although allowed); the value of the last executed statement or expression is normally the function's value. Instead of the Java cast operator (Type) foo, Scala uses foo.asInstanceOf[Type], or a specialized function such as toDouble or toInt.

  4. Type conversion - Wikipedia

    en.wikipedia.org/wiki/Type_conversion

    In computer science, type conversion, [1] [2] type casting, [1] [3] type coercion, [3] and type juggling [4] [5] are different ways of changing an expression from one data type to another. An example would be the conversion of an integer value into a floating point value or its textual representation as a string , and vice versa.

  5. List of Java bytecode instructions - Wikipedia

    en.wikipedia.org/wiki/List_of_Java_bytecode...

    This is a list of the instructions that make up the Java bytecode, an abstract machine language that is ultimately executed by the Java virtual machine. [1] The Java bytecode is generated from languages running on the Java Platform, most notably the Java programming language.

  6. Downcasting - Wikipedia

    en.wikipedia.org/wiki/Downcasting

    In class-based programming, downcasting, or type refinement, is the act of casting a base or parent class reference, to a more restricted derived class reference. [1] This is only allowable if the object is already an instance of the derived class, and so this conversion is inherently fallible.

  7. typeof - Wikipedia

    en.wikipedia.org/wiki/Typeof

    The operator typeof_unqual was also added which is the same as typeof, except it removes cvr-qualification and atomic qualification. [6] [7] In VB.NET, the C# variant of "typeof" should be translated into the VB.NET's GetType method. The TypeOf keyword in VB.NET is used to compare an object reference variable to a data type.

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  9. Type safety - Wikipedia

    en.wikipedia.org/wiki/Type_safety

    The new operator returns a pointer of type based on operand, whereas malloc returns a void pointer. C++ code can use virtual functions and templates to achieve polymorphism without void pointers. Safer casting operators, such as dynamic cast that performs run-time type checking.