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Switch statements function somewhat similarly to the if statement used in programming languages like C/C++, C#, Visual Basic .NET, Java and exist in most high-level imperative programming languages such as Pascal, Ada, C/C++, C#, [1]: 374–375 Visual Basic .NET, Java, [2]: 157–167 and in many other types of language, using such keywords as ...
Pascal, in its original form, is a purely procedural language and includes the traditional array of ALGOL-like control structures with reserved words such as if, then, else, while, for, and case, ranging on a single statement or a begin-end statements block. Pascal also has data structuring constructs not included in the original ALGOL 60 types ...
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In Pascal subroutines, begin and end delimit a block of statements preceded by local declarations, while C functions use "{" and "}" to delimit a block of statements optionally preceded by declarations : C (before C99) strictly defines that any declarations must occur before the statements within a particular block but allows blocks to appear ...
Switch statements (or case statements, or multiway branches) compare a given value with specified constants and take action according to the first constant to match. There is usually a provision for a default action ("else", "otherwise") to be taken if no match succeeds. Switch statements can allow compiler optimizations, such as lookup tables.
A language that supports the statement construct typically has rules for one or more of the following aspects: Statement terminator – marks the end of a statement; Statement separator – demarcates the boundary between two statements; need needed for the last statement; Line continuation – escapes a newline to continue a statement on the ...
Joan claimed that she “hadn’t fallen in love” with Pascal at the time of his departure. “I hadn't gotten there yet. I knew that I needed to be careful with my heart with him,” she explained.
If-then-else flow diagram A nested if–then–else flow diagram. In computer science, conditionals (that is, conditional statements, conditional expressions and conditional constructs) are programming language constructs that perform different computations or actions or return different values depending on the value of a Boolean expression, called a condition.