Page 82 - Code Craft Computer-8
P. 82
¨ The for statement executes a simple or compound statement for a fixed number of times.
¨ The 'in' operator is used to check if a given value exists in the sequence or not. It evaluates to
True if it finds a value in the specified sequence else it returns False.
¨ The range() function is an in-built function of Python. This function generates a list which is a
sequence type. A sequence is a succession of values bound together by a single name. The
range() function is used in the for loop to iterate over the numbers.
¨ The while statement executes a set of statements repeatedly, until the logical expression
evaluates to true. When the condition becomes false, the control comes out of the loop.
¨ If the condition given in a loop never becomes false, then the loop will never terminate and run
indefinitely. This type of loops is called an infinite loop.
¨ The break is a keyword in Python which is used for bringing the program control out of the
loop. The break statement halts the execution of a loop and program flow switches to the
statement after the loop.
¨ The continue statement is used inside loops. When a continue statement is encountered inside
a loop, control of the program jumps to the beginning of the loop for next iteration, skipping
the execution of rest of the statements of the loop for the current iteration.
Knowledge Check
A. Mark the correct response.
1. The __________ statement allows to repeat a task for a fixed OMR Sheet
number of times. Use only blue/black ball
pen to fill the circles. It
a. for b. while should be darkened
completely and properly.
c. Both a and b d. None of these
Wrong methods
2. The __________ statements terminates the execution of the
Correct method
loop.
a. Break b. Continue
1. a b c d
c. For d. While
3. Python offers __________ jumping statements.
2. a b c d
a. Two b. Three
c. Four d. Five 3. a b c d
4. To come out of the infinite loop, we can either close the program
window or press __________. 4. a b c d
a. Alt + C b. Ctrl + C
5. a b c d
c. Shift +C d. Alt + Ctrl + C
5. The continue statement is used __________ loops.
a. Inside b. Outside
c. Both a and b d. None of these
82
