Decision Control Statements:

The decision control statements alter the normal sequential execution of the statements of program depending upon the test condition to be carried out a particular point in the program.

The decision to be taken regarding where the control should transfers depends upon the outcome of the test condition. The following Decision control statements are supported by C:

a.      If statement

b.      If- else statement

c.       switch statement

d.      goto statement

The if statement:

The basic decision making statement used in most C programs is the if statement. The different types of if statement are:

1.      Simple if statement                     3. Nested if else                     

2.      if – else statement                        4. Else – if ladder

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