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Decision
Decision-making structures require that the programmer specifies one or more conditions
to be evaluated or tested by the program, along with a statement or statements to be executed if
the condition is determined to be true, and optionally, other statements to be executed if the
condition is determined to be false.
Shown below is the general form of a typical decision-making structure found in most of
the programming languages:
C programming language assumes any non-zero and non-null values as true, and if it is
either zero or null, then it is assumed as false value.
C programming language provides the following types of decision-making statements.
Statement Description
if statement An if statement consists of a boolean expression
followed by one or more statements.
if...else statement An if statement can be
followed by an optional else statement,
which executes when
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