This document discusses control structures in Python, including conditional statements and iterative statements. It covers the if, if/else, and if/elif conditional constructs and their syntax and use. It also discusses while and for loops as the two types of iterative statements in Python. The while loop iterates while a condition is true, and the for loop is used to iterate over iterable objects like lists, tuples, and ranges of numbers. Examples are provided for each control structure to demonstrate their functionality.
This document discusses control structures in Python, including conditional statements and iterative statements. It covers the if, if/else, and if/elif conditional constructs and their syntax and use. It also discusses while and for loops as the two primary iterative constructs. The while loop iterates while a condition is true, and the for loop is used to iterate over iterable objects like lists, tuples, and ranges of numbers. Examples are provided for each control structure to demonstrate their functionality.
This document discusses control structures in Python, including conditional statements and iterative statements. It covers the if, if/else, and if/elif conditional constructs and their syntax and use. It also discusses while and for loops as the two primary iterative constructs. The while loop iterates while a condition is true, and the for loop is used to iterate over iterable objects like lists, tuples, and ranges of numbers. Examples are provided for each control structure to demonstrate their functionality.
This document discusses different types of loops in Java programming: while, for, do-while, and enhanced for loops. It provides the syntax and flow for each loop type along with examples. The key loop types are:
- While loops repeat while a condition is true, testing at the start of each iteration.
- For loops iterate a specific number of times, with initialization, condition, and update sections.
- Do-while loops are like while loops but test the condition at the end, so the body executes at least once.
- Enhanced for loops iterate over collections/arrays, declaring a block variable to access each element.
Loops allow blocks of code to be repeatedly executed. The three types of loops in C are while loops, for loops, and do-while loops. While loops check the condition before each iteration. For loops allow initialization, condition checking, and increment/decrement in the loop header. Do-while loops check the condition after executing the block at least once. Break and continue statements can be used to exit or skip portions of loops. Switch statements compare a value to multiple case values and execute the corresponding block.
This presentation educates you about R-loops with the following general form of a loop statement in most of the programming languages, Loop Type & Description, Loop Control Statements, Control Statement & Description.
For more topics stay tuned with Learnbay.
This document discusses loops in C++ programming. It defines while, for, and do-while loops and how each one works. It also describes loop control statements like break, continue, and goto that change the normal execution of loops. Finally, it provides an example of an infinite loop in C++ using a for loop without a conditional expression to repeat indefinitely.
This document discusses control structures in Python, including conditional statements and iterative statements. It covers the if, if/else, and if/elif conditional constructs and their syntax and use. It also discusses while and for loops as the two types of iterative statements in Python. The while loop iterates while a condition is true, and the for loop is used to iterate over iterable objects like lists, tuples, and ranges of numbers. Examples are provided for each control structure to demonstrate their functionality.
This document discusses control structures in Python, including conditional statements and iterative statements. It covers the if, if/else, and if/elif conditional constructs and their syntax and use. It also discusses while and for loops as the two primary iterative constructs. The while loop iterates while a condition is true, and the for loop is used to iterate over iterable objects like lists, tuples, and ranges of numbers. Examples are provided for each control structure to demonstrate their functionality.
This document discusses control structures in Python, including conditional statements and iterative statements. It covers the if, if/else, and if/elif conditional constructs and their syntax and use. It also discusses while and for loops as the two primary iterative constructs. The while loop iterates while a condition is true, and the for loop is used to iterate over iterable objects like lists, tuples, and ranges of numbers. Examples are provided for each control structure to demonstrate their functionality.
This document discusses different types of loops in Java programming: while, for, do-while, and enhanced for loops. It provides the syntax and flow for each loop type along with examples. The key loop types are:
- While loops repeat while a condition is true, testing at the start of each iteration.
- For loops iterate a specific number of times, with initialization, condition, and update sections.
- Do-while loops are like while loops but test the condition at the end, so the body executes at least once.
- Enhanced for loops iterate over collections/arrays, declaring a block variable to access each element.
Loops allow blocks of code to be repeatedly executed. The three types of loops in C are while loops, for loops, and do-while loops. While loops check the condition before each iteration. For loops allow initialization, condition checking, and increment/decrement in the loop header. Do-while loops check the condition after executing the block at least once. Break and continue statements can be used to exit or skip portions of loops. Switch statements compare a value to multiple case values and execute the corresponding block.
This presentation educates you about R-loops with the following general form of a loop statement in most of the programming languages, Loop Type & Description, Loop Control Statements, Control Statement & Description.
For more topics stay tuned with Learnbay.
This document discusses loops in C++ programming. It defines while, for, and do-while loops and how each one works. It also describes loop control statements like break, continue, and goto that change the normal execution of loops. Finally, it provides an example of an infinite loop in C++ using a for loop without a conditional expression to repeat indefinitely.
This document discusses different types of loops in computer programming including for, while, and do-while loops. It provides definitions and descriptions of each loop type, their syntax, and how they work. Nested loops are also covered, which are loops used inside other loops. Key details covered include how for loops iterate with a loop variable, while loops test conditions before executing, and do-while loops check conditions at the bottom of the loop so they always execute at least once.
C++ provides several types of loops to repeat blocks of code, including while, for, do-while, and nested loops. Loop control statements like break, continue, and goto change the normal execution flow. An infinite loop is one whose condition never becomes false, allowing the loop to repeat indefinitely until terminated.
“Loop in C – Properties, and Applications”. We will cover Introduction, Details, Advantages, History, Types of Loops, Flowcharts, Practical Use, Outputs, and Conclusion. What is a loop? We are all familiar with the idea of listening to songs on loops. But, we are obviously not here to speak on that.
What is a loop in C? Looping Statements in C execute the sequence of statements many times until the stated condition becomes false. It has mainly 2 parts – a body of a loop and a control statement. The main purpose is to repeat the same code a number of times.
Visual Basic loop structures allow you to run one or more lines of code repetitively. You can repeat the statements in a loop structure until a condition is True, until a condition is False, a specified number of times, or once for each element in a collection.
This document discusses loops in Python programming. It explains that loops allow blocks of code to be executed multiple times. There are three main types of loops in Python: while loops, for loops, and nested loops. While loops repeat as long as a condition is true, for loops execute a sequence of statements a specific number of times, and nested loops allow loops within other loops. The document also covers loop control statements like break, continue, and pass that change the normal execution order of loops.
Decision making and looping - c programming by YEASIN NEWAJYeasinNewaj
This document discusses decision making and looping statements in C programming. It covers relational expressions, if/else statements, loops (for, while, do-while), and switch statements. Specific examples are provided for each type of statement to illustrate their syntax and usage. Relational expressions are used to evaluate conditions, while decision making statements like if/else execute code conditionally. Looping statements like for and while repeat code execution. The switch statement allows executing different code blocks based on the value of an expression. Nested statements are also demonstrated where control structures are used within other structures.
Chapter 9 Conditional and Iterative Statements.pptxXhelalSpahiu
This document provides an overview of conditional and iterative statements in Python. It begins by defining selection and iteration as two types of control structures that allow programs to control the flow of execution.
It then discusses conditional constructs like if/else statements, providing examples of how to write if/else and if/elif/else statements. It also covers loops, specifically while and for loops. The while loop repeats a block of code as long as a condition is true, and for loops iterate over a sequence. Examples are given of using range() and len() with for loops. Finally, the document lists several programming problems suited for different levels that involve conditional and iterative statements.
Decision making:
In CSharp, various types of decision making statements are available such as if..else, if..else..if, switch etc. Each statement is used to evaluate the specific test. If tests are determined to be true, specific statement will be execued for example : if(a > b) statement1 else statement2. Sometimes when develpoing program that requires to take the decision to execute specific part of program, decision making statement helps to do so.
Switch Case
In CSharp switch acts like a multiple if / else if / else chain. Checks a value against a list of cases, and executes the first case that is true. If no matching case found, it executes the default case. The break(optional) statements with case indicate to the interpreter to end the particular case.
It gives you the basic difference between among different types of loop...So here its my Presentation that help to clear all the confusions you faced while studying the LOOPS.
This document discusses loops in C++. It describes the parts of a loop including initialization, test, and update expressions. It explains the functioning of for, while, and do-while loops through examples. A for loop executes a sequence of statements multiple times in an abbreviated form. A while loop repeats statements as long as a condition is true, testing the condition first. A do-while loop evaluates the test expression after executing the loop body, so the body is executed at least once. Nested loops are used to repeat an inner loop multiple times for each iteration of an outer loop.
Chapter 9 Conditional and Iterative Statements.pptxmaheshnanda14
This document discusses conditional and iterative statements in Python. It begins by introducing control structures like selection and iteration that allow controlling the flow of a program. The main types of control structures covered are sequences, conditionals (if/else), and loops (while and for). Several examples of using conditional (if/else) and iterative (while, for) statements are provided, along with explanations and flowcharts. Common looping constructs like break, continue, pass, and range are also described. The document concludes with a class test as practice problems.
Learn C# Programming - Decision Making & LoopsEng Teong Cheah
The document provides an overview of decision making structures and loops in C#. It discusses if, if-else, if-else if-else statements, switch statements, and how to nest conditional logic. It also covers while, for, do-while loops, nested loops, and loop control statements like break and continue. Examples are provided for each structure to demonstrate their syntax and usage.
This document discusses different types of loop constructs in C programming language. It describes while, do-while and for loops. While and do-while loops execute statements repeatedly as long as a given condition is true. For loops allow initialization of counters, check a condition, and update the counter each iteration. The document also covers flow charts to illustrate loop execution and examples of each loop type as well as continue, break and goto statements that change loop flow.
The document discusses different types of control structures in programming, including decision structures like if/else statements and switch statements that allow selecting code paths, repetition structures like while, do-while and for loops that repeat code, and branching statements like break, continue, and return that change program flow. It provides examples of how to use each structure and highlights best practices for writing clear and correct code using control structures.
This document discusses different types of program control statements in C++. It covers selection statements like if-else and switch that allow conditional execution of code. It also covers iteration statements like for, while, and do-while loops that allow repetitive execution of code. Additionally, it discusses jump statements like break, continue, goto, and return that allow changing the normal sequential flow of code execution. The document provides syntax and examples to explain how each of these statement types work.
This document discusses control statements and decision making in C programming. It describes the different types of conditional statements like if, if-else, if-else-ladder statements. It also covers loops like while, for, do-while loops and their syntax. Finally, it discusses single line and multi-line comments in C with examples.
This document discusses loops in C++. It defines for, while, and do-while loops and explains their syntax and functioning. For loops execute a sequence of statements multiple times using initialization, condition, and update expressions. While loops test the condition before executing the loop body, and do-while loops test after. Nested loops are used to repeat an inner loop multiple times for each iteration of the outer loop.
This document discusses different types of loops in computer programming including for, while, and do-while loops. It provides definitions and descriptions of each loop type, their syntax, and how they work. Nested loops are also covered, which are loops used inside other loops. Key details covered include how for loops iterate with a loop variable, while loops test conditions before executing, and do-while loops check conditions at the bottom of the loop so they always execute at least once.
C++ provides several types of loops to repeat blocks of code, including while, for, do-while, and nested loops. Loop control statements like break, continue, and goto change the normal execution flow. An infinite loop is one whose condition never becomes false, allowing the loop to repeat indefinitely until terminated.
“Loop in C – Properties, and Applications”. We will cover Introduction, Details, Advantages, History, Types of Loops, Flowcharts, Practical Use, Outputs, and Conclusion. What is a loop? We are all familiar with the idea of listening to songs on loops. But, we are obviously not here to speak on that.
What is a loop in C? Looping Statements in C execute the sequence of statements many times until the stated condition becomes false. It has mainly 2 parts – a body of a loop and a control statement. The main purpose is to repeat the same code a number of times.
Visual Basic loop structures allow you to run one or more lines of code repetitively. You can repeat the statements in a loop structure until a condition is True, until a condition is False, a specified number of times, or once for each element in a collection.
This document discusses loops in Python programming. It explains that loops allow blocks of code to be executed multiple times. There are three main types of loops in Python: while loops, for loops, and nested loops. While loops repeat as long as a condition is true, for loops execute a sequence of statements a specific number of times, and nested loops allow loops within other loops. The document also covers loop control statements like break, continue, and pass that change the normal execution order of loops.
Decision making and looping - c programming by YEASIN NEWAJYeasinNewaj
This document discusses decision making and looping statements in C programming. It covers relational expressions, if/else statements, loops (for, while, do-while), and switch statements. Specific examples are provided for each type of statement to illustrate their syntax and usage. Relational expressions are used to evaluate conditions, while decision making statements like if/else execute code conditionally. Looping statements like for and while repeat code execution. The switch statement allows executing different code blocks based on the value of an expression. Nested statements are also demonstrated where control structures are used within other structures.
Chapter 9 Conditional and Iterative Statements.pptxXhelalSpahiu
This document provides an overview of conditional and iterative statements in Python. It begins by defining selection and iteration as two types of control structures that allow programs to control the flow of execution.
It then discusses conditional constructs like if/else statements, providing examples of how to write if/else and if/elif/else statements. It also covers loops, specifically while and for loops. The while loop repeats a block of code as long as a condition is true, and for loops iterate over a sequence. Examples are given of using range() and len() with for loops. Finally, the document lists several programming problems suited for different levels that involve conditional and iterative statements.
Decision making:
In CSharp, various types of decision making statements are available such as if..else, if..else..if, switch etc. Each statement is used to evaluate the specific test. If tests are determined to be true, specific statement will be execued for example : if(a > b) statement1 else statement2. Sometimes when develpoing program that requires to take the decision to execute specific part of program, decision making statement helps to do so.
Switch Case
In CSharp switch acts like a multiple if / else if / else chain. Checks a value against a list of cases, and executes the first case that is true. If no matching case found, it executes the default case. The break(optional) statements with case indicate to the interpreter to end the particular case.
It gives you the basic difference between among different types of loop...So here its my Presentation that help to clear all the confusions you faced while studying the LOOPS.
This document discusses loops in C++. It describes the parts of a loop including initialization, test, and update expressions. It explains the functioning of for, while, and do-while loops through examples. A for loop executes a sequence of statements multiple times in an abbreviated form. A while loop repeats statements as long as a condition is true, testing the condition first. A do-while loop evaluates the test expression after executing the loop body, so the body is executed at least once. Nested loops are used to repeat an inner loop multiple times for each iteration of an outer loop.
Chapter 9 Conditional and Iterative Statements.pptxmaheshnanda14
This document discusses conditional and iterative statements in Python. It begins by introducing control structures like selection and iteration that allow controlling the flow of a program. The main types of control structures covered are sequences, conditionals (if/else), and loops (while and for). Several examples of using conditional (if/else) and iterative (while, for) statements are provided, along with explanations and flowcharts. Common looping constructs like break, continue, pass, and range are also described. The document concludes with a class test as practice problems.
Learn C# Programming - Decision Making & LoopsEng Teong Cheah
The document provides an overview of decision making structures and loops in C#. It discusses if, if-else, if-else if-else statements, switch statements, and how to nest conditional logic. It also covers while, for, do-while loops, nested loops, and loop control statements like break and continue. Examples are provided for each structure to demonstrate their syntax and usage.
This document discusses different types of loop constructs in C programming language. It describes while, do-while and for loops. While and do-while loops execute statements repeatedly as long as a given condition is true. For loops allow initialization of counters, check a condition, and update the counter each iteration. The document also covers flow charts to illustrate loop execution and examples of each loop type as well as continue, break and goto statements that change loop flow.
The document discusses different types of control structures in programming, including decision structures like if/else statements and switch statements that allow selecting code paths, repetition structures like while, do-while and for loops that repeat code, and branching statements like break, continue, and return that change program flow. It provides examples of how to use each structure and highlights best practices for writing clear and correct code using control structures.
This document discusses different types of program control statements in C++. It covers selection statements like if-else and switch that allow conditional execution of code. It also covers iteration statements like for, while, and do-while loops that allow repetitive execution of code. Additionally, it discusses jump statements like break, continue, goto, and return that allow changing the normal sequential flow of code execution. The document provides syntax and examples to explain how each of these statement types work.
This document discusses control statements and decision making in C programming. It describes the different types of conditional statements like if, if-else, if-else-ladder statements. It also covers loops like while, for, do-while loops and their syntax. Finally, it discusses single line and multi-line comments in C with examples.
This document discusses loops in C++. It defines for, while, and do-while loops and explains their syntax and functioning. For loops execute a sequence of statements multiple times using initialization, condition, and update expressions. While loops test the condition before executing the loop body, and do-while loops test after. Nested loops are used to repeat an inner loop multiple times for each iteration of the outer loop.
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6. INTRODUCTION
Programs are written for the solution to
the real world problems. A language should
have the ability to control the flow of execution
so that at different intervals different
statements can be executed. Structured
programming is a paradigm aims at controlling
the flow of execution of statements in a
program by using control structures.
A language which supports the control
structures is called as structured programming
language
8. A Structured programming is an important
feature of a programming language which
comprises following logical structure:
1. SEQUENCE
2. SELECTION
3. ITERATION OR LOOPING
4. BRANCHING OR JUMPING STATEMENTS
TYPES OF CONTROL STRUCTURES
9. Sequence is the default control structure;
instructions are executed one after another.
Statement 1
Statement 2
Statement 3
……..
……..
……..
1. SEQUENCE
13. Sequence is the default control structure;
instructions are executed one after another.
# This program adds two numbers
def sum_of_two_no():
num1 = 1.5
num2 = 6.3
sum = float(num1) + float(num2)
print('The sum is =‘, sum)
sum_of_two_no():
1. SEQUENCE - PROGRAM
15. A selection statement causes the
program control to be transferred to a
specific flow based upon whether a certain
condition is true or not.
2. SELECTION
17. CONDITIONAL CONSTRUCT – if else STATEMENT
Conditional constructs (also known as if
statements) provide a way to execute a chosen
block of code based on the run-time evaluation of
one or more Boolean expressions. In Python, the
most general form of a conditional is written as
follows:
Contd.. Next Slide
18. CONDITIONAL CONSTRUCT – if else STATEMENT
if first condition:
first body
elif second condition:
second body
elif third condition:
third body
else:
fourth body
: Colon Must
20. CONDITIONAL CONSTRUCT – if else STATEMENT
FLOW CHART
Condition ? Statement 1 Statement 2
Statement 1
Statement 2
False
True
else
body
Main
Body
21. CONDITIONAL CONSTRUCT – if else STATEMENT
Each condition is a Boolean expression, and
each body contains one or more commands that
are to be executed conditionally.
If the first condition succeeds, the first body will
be executed; no other conditions or bodies are
evaluated in that case.
22. CONDITIONAL CONSTRUCT – if else STATEMENT
If the first condition fails, then the process
continues in similar manner with the evaluation
of the second condition. The execution of this
overall construct will cause precisely one of the
bodies to be executed.
There may be any number of elif clauses
(including zero), and
The final else clause is optional.
30. 3. ITERATION OR LOOPING
What is loop or iteration?
Loops can execute a block of code number
of times until a certain condition is met.
OR
The iteration statement allows instructions to
be executed until a certain condition is to be
fulfilled.
The iteration statements are also called as
loops or Looping statements.
31. 3. ITERATION OR LOOPING
Python provides two kinds of loops &
they are,
for loop
while loop
33. while loop
A while loop allows general repetition
based upon the repeated testing of a Boolean
condition
The syntax for a while loop in Python is as
follows:
while condition:
body
Where, loop body contain the single
statement or set of statements (compound
statement) or an empty statement.
Contd..
: Colon Must
34. while loop
The loop iterates while the expression
evaluates to true, when expression becomes
false the loop terminates.
while loop
FLOW CHART
41. for LOOP
Python’s for-loop syntax is a more
convenient alternative to a while loop when
iterating through a series of elements. The for-
loop syntax can be used on any type of iterable
structure, such as a list, tuple str, set, dict, or
file
Syntax or general format of for loop is,
for element in iterable:
body
42. for LOOP
Python’s for-loop syntax is a more
convenient alternative to a while loop when
iterating through a series of elements. The for-
loop syntax can be used on any type of iterable
structure, such as a list, tuple str, set, dict, or
file
Syntax or general format of for loop is,
for element in iterable:
body
45. for LOOP - range KEYWORD
The range() function returns a
sequence of numbers, starting from 0 by
default, and increments by 1 (by default),
and ends at a specified number.
range(start, stop, step)
for n in range(3,6):
print(n)
x = range(3, 6)
for n in x:
print(n)
OR
46. for LOOP - range KEYWORD
OUTPUT
#Generating series of numbers
47. for LOOP - range KEYWORD
OUTPUT
#Generating even numbers
51. else statement in loop
else can be used in for and while loops
the else body will be executed as and when the
loop’s conditional expression evaluates to false
OUTPUT
53. 4. BRANCHING OR JUMPING STATEMENTS
Python has an unconditional branching
statements and they are,
1. break STATEMENT
2. continue STATEMENT
54. 4. BRANCHING OR JUMPING STATEMENTS
1. break STATEMENT
Break can be used to unconditionally
jump out of the loop. It terminates the
execution of the loop. Break can be used in
while loop and for loop. Break is mostly
required, when because of some external
condition, we need to exit from a loop.
57. 2. continue STATEMENT
The continue statement in
Python returns the control to the
beginning of the while loop. The continue
statement rejects all the
remaining statements in the current
iteration of the loop and moves the
control back to the top of the loop.
The continue statement can be used in
both while and for loops.
59. 2. continue STATEMENT
when i value becomes 2 the print statement gets
skipped, continue statement goes for next iteration,
hence in the out put 2 is not printed
61. pass STATEMENT
The pass statement in Python is used when a
statement is required syntactically but you do not
want any command or code to execute.
The pass statement is a null operation; nothing
happens when it executes.
The pass is also useful in places where your
code will eventually go, but has not been written
yet (e.g., in stubs for example):