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A list box is a graphical control element that allows the user to select one or more items from a list contained within a static, multiple line text box. The user clicks inside the box on an item to select it, sometimes in combination with the ⇧ Shift or Ctrl in order to make multiple selections. "Control-clicking" an item that has already ...
In Systems Hungarian notation, the prefix encodes the actual data type of the variable. For example: bReadLine(bPort,&arru8NumberList) : function with a byte-value return code. strName : Variable represents a string ("str") containing the name, but does not specify how that string is implemented.
In computer programming languages, a switch statement is a type of selection control mechanism used to allow the value of a variable or expression to change the control flow of program execution via search and map. Switch statements function somewhat similarly to the if statement used in programming languages like C / C++, C#, Visual Basic .NET ...
In Object-oriented programming, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance. One of the well-known "Gang of Four" design patterns, which describes how to solve recurring problems in object-oriented software. [1] The pattern is useful when exactly one object is needed to ...
A list builder, [1][2] also known as a dual list, dual listbox, [3][4] disjoint listbox, [5] list shuttle, [6] shuttle, [7] swaplist, [8] transfer list[9] and two sided multi select, [10] is a graphical control element in which a user can select a set of text values by moving values between two list boxes, one representing selected values and ...
A generic combo box. A combo box is a commonly used graphical user interface widget (or control). Traditionally, it is a combination of a drop-down list or list box and a single-line editable textbox, allowing the user to either type a value directly or select a value from the list. The term "combo box" is sometimes used to mean "drop-down list ...
Objects are instances of a class. Object-oriented programming (OOP) is a programming paradigm based on the concept of objects, [1] which can contain data and code: data in the form of fields (often known as attributes or properties), and code in the form of procedures (often known as methods).
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 in C++, in Java there are no global functions or variables, but there are data members which are also regarded as global variables. All code belongs to classes and all values are objects.