Page 148 - Computer - 6
P. 148

The code and sample output for the example are given below.















            Statements in Small Basic
            Statements in Small Basic are of three types:

             •  Assignment             • Conditional              • Looping

            Assignment Statement
            The  Assignment  statement  is  used  to  assign  a  value  to  a  variable.  For  example,  the  statement
            Class = 6 is an assignment statement that assigns the value 6 to the variable Class.

            Conditional Statement
            The  Conditional  statement  is  used  to  execute  a  statement  or  a  group  of  statements  based  on
            certain  conditions.  The  Conditional  statement  lets  you  check  a  condition  and  perform  specific
            functions based on whether the condition is True or False. It is also called the Branching statement.
            The common conditional statements used in Small Basic are:

            (a)  If – Then Statement
            The If – Then statement uses three keywords – If, Then, and EndIf. The syntax of this statement is:
                 If (test condition) Then


                        <statements to execute if the test condition is true>
                 EndIf
            If the test condition is True, the statements after Then are executed, else the control is transferred to
            EndIf that marks the end of the conditional statement.

            (b)  If – Then – Else Statement
            The If – Then – Else statement uses four keywords – If, Then, Else, and EndIf. The syntax of this
            statement is:
                 If (test condition) Then

                        <statements to execute if the test condition is true>

                 Else
                        <statements to execute if the test condition is false>

                 EndIf
            If the test condition is True, the statements after Then are executed and if the test condition is False,
            the statements after Else are executed. After execution, the control is transferred to EndIf.



              146
   143   144   145   146   147   148   149   150   151   152