Making Decisions in your program – C# Decision Making
Introduction:
Sometimes ,We have a many
situations where we may have to change the order of execution of statements based on user input
. Based on some kind of condition, the program can choose
a different set of instructions to run. In
C#, various types of decision making statements are available such as if,if..else,
else..if, switch etc.But if Condition is most widely used in C# .
What is Decision Making ?
Decision making statements help you to make decision based
on certain conditions. Making Decisions in your progrm is required by the programmer to specify one or many
conditions to be evaluated or tested , along with a statement or statements to
be executed. If the condition is find to be true, and optionally, other
statements to be executed if the condition is determined to be false.
If Statement:
If Statement is used for all kinds of things in your
program. In this statement you write on if statement the keyword
if is used. If Statement followed by an Boolean expression.
syntax
For if statement
if(condition expression)
{
statement;
-----------------
}
If
– else Statement:
if-else
statement consists of two statements . if statement and else statement. the
code should execute only one of these two different paths.When specified
condition fail the else statement will get execute.
Syntax for
if-else statement
if(condition expression 2)
{
statement;
.........................
}
else
{
statement;
}
Switch
Statement:
A switch statement allows a code to be tested for
equality against a list of cases. The Switch Keyword is used by the different
cases. When
one case matches the value with the result of switch expression, the control
continues executing the code from that label.
Syntax
for Switch Statement
switch(expression)
{
case 1:
statement;
case 2:
statement;
case 3:
statement;
.
.
default:
statement;
}
Conclusion:
Decision Making are a key part of programming. They
let you make decisions about how things are going to work. No programming
language is complete without some form of if-statement or else if statement.
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