Examlex
An abstract class is used to describe a "thing" that is abstract,i.e.not tangible.
Phone Number
A sequence of digits assigned to a telephone line for the purpose of making and receiving calls to and from the telecommunications network.
Control Layout
In graphical user interfaces, the arrangement and organization of controls (like buttons, text fields) on a window or a form.
Merge Cells
Combining two or more cells into one cell within a spreadsheet or table.
Freeze
To lock or make static a portion of data or screen to prevent it from scrolling or being modified.
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