A repetition structure
causes a statement or set of statements to execute repeatedly. Repetition structures are used to perform the same task over and over. A condition-controlled loop uses a Boolean (true/false) condition to control the number of times that it repeats.
What is repetition program structure?
Repetition structures, or loops, are
used when a program needs to repeatedly process one or more instructions until some condition is met, at which time the loop ends
. Many programming tasks are repetitive, having little variation from one item to the next.
What is the structure that causes a statement or a set of statements to execute repeatedly Python?
What is
a repetition structure
? More commonly known as a loop, a repetition structure causes a statement or set of statements to execute repeatedly as many times as necessary.
What do we call repeated execution of a group of statements?
The group of statements being executed repeatedly is called
a loop
. There are two loop statements in Python: for and while .
What is repetition structure in Python?
Repetition statements are called loops, and are
used to repeat the same code multiple times in succession
. Python has two types of loops: Condition-Controlled and Count-Controlled. Condition-Controlled loop uses a true/false condition to control the number of times that it repeats – while.
What is a local variable What statements are able to access a local variable?
What statements are able to access a local variable? A local variable is a variable that is declared inside of a function.
Only statements in the same function can access
a local variable.
Which statement is false about infinite loop?
An infinite loop is a commonly the result of a syntax error. Which statement is false about infinite loop?
The body of a while loop eventually must make the condition false to avoid infinite loop
. An infinite loop is generally caused by a programming mistake.
What are the major types of repetition structures?
Repetition statements fall into two general categories;
while loops and for loops
. Although it is possible to write every loop as a while loop (or every loop as a for loop), this is not a good idea. While loops should be used if the number of repetitions is not fixed.
What are the different repetition structure?
There are three different forms of Visual Basic repetition structures:
Do While structures, For structures, and Do/Loop Until structures
.
What is the purpose of a repetition structure?
Repetition structures are used
to repeat statements or blocks of code
. The decision whether to repeat the code is based on the evaluation of a logical expression. If the expression is true, the code is executed.
Which keyword is used to break the infinite loop?
To stop, you have to break the endless loop, which can be done by pressing
Ctrl+C
. But that isn’t the way you want your programs to work. Instead, an exit condition must be defined for the loop, which is where the break keyword comes into play.
What is the command to do repetition?
The general form is:
repeat
number [commands]. We must use the keyword – repeat followed by a number and then a sequence of commands in [square brackets]. Often, we might have to repeat within repeat.
What is the significance of updating loop control variable in while statement?
Answer:
The variable count is initialized, tested, and changed as the loop executes
. It is an ordinary int variable, but it is used in a special role. The role is that of a loop control variable.
Can we create GUI in Python?
Python offers multiple options for developing GUI (Graphical User Interface). … It is a standard Python interface to the Tk GUI toolkit shipped with Python. Python with
tkinter
is the fastest and easiest way to create the GUI applications. Creating a GUI using tkinter is an easy task.
Why is * called string repetition operator?
We are accustomed to using the * symbol to represent multiplication, but
when the operand on the left side of the * is a tuple, it becomes the repetition operator
. The repetition operator makes multiple copies of a tuple and joins them all together. Tuples can be created using the repetition operator, *.
What is the difference between selection and repetition?
Selection: Algorithms can use selection to determine a different set of steps to execute based on a Boolean expression.
Iteration
: Algorithms often use repetition to execute steps a certain number of times or until a certain condition is met.
