Subscripted Variable:

Subscripted Variable


    Subscripted variables are used to store the values of the same type in an array. It also helps us to store more values in a single variable name. Subscripted variables are declared by giving the variable name along with the subscript.
    Example: a(10)
    Here a is the variable name and 10 is known as the subscripted value through which we can store 10 values in the variable name a. The 10 values are stored in a(1),a(2),….,a(10). As only one subscript is given for the above variable, the array is called as the single dimensional array.
    Program
    Given the number 20,13,-14,11,50,16,-17,18,19,2. Store them in the computer memory.
    Read a number from the terminal. Verify if this number is present in the above list
    FileSubscripted_Variable.jpg
    when the range of a loop lies within the range of another loop, the first loop is said to be nester in the latter. The loops may be placed as
    For

    For
    The loops may also be specified as
    for
    Program
    Develop a program to calculate the sum
    sum
    10 REM TO ILLUSTRATE NESTING OF LOOPS
    20 PRINT “J”,”SUM”
    30 PRINT
    40 REM FIRST LOOP STARTS
    50 FOR J = 1 TO 5
    60 S=0
    70 REM SECOND LOOP STARTS
    80 FOR K=1 TO 5
    90 S = S+K^J
    100 NEXT K
    110 T=0
    120 REM THIRD LOOP STARTS
    130 FOR K=1 TO 5
    140 T = T+K*J
    150 NEXT K
    160 Q=S+T
    170 PRINT J,Q
    180 NEXT J
    190 END
    Output
    J SUM
    1 30
    2 85
    3 270
    4 1039
    5 4500
    The WHILE-DO statement
    Where
    test-condition --is relational or Boolean expression whose value may be
    true or false
    S1,S2,… -- are BASIC statements
    Each WHILE must have its corresponding DO statement. The action of WHILE –DO statement is as follows.
    Execute statement S1, S2, … up to DO ,as long as the test-condition is true. When it becomes false, execute statement following DO. Thus the execution of WHILE-DO statement is completed only when the test-condition becomes false.
    Program:
    10 REM ACTION OF WHILE –DO STATEMENT
    20 LET SUM = 0
    30 LET I= 1
    40 WHILE I<=10
    50 SUM =SUM + I
    60 I = I+1
    70 DO
    80 PRINT “SUM=”;SUM
    90 END

Last modified: Wednesday, 18 January 2012, 10:59 PM