Conditional Statements in Python Conditional Statements என்பது ஒரு condition True அல்லது False என்பதைப் பொறுத……
Conditional Statements in Python
A conditional statement is used to execute a block of code based on whether a given condition is True or False. தமிழில்: கொடுக்கப்பட்ட condition உண்மையா (True) அல்லது பொய்யா (False) என்பதை check செய்து, அதற்கு ஏற்ற code-ஐ execute செய்வது C…
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Definition
A conditional statement is used to execute a block of code based on whether a given condition is True o……
Simple Explanation
Real-time example: ஒரு student mark: Mark = 70 Condition: Mark ……
Flow
Basic conditional flow: Condition ↓ True / False ↙ ↘ True False ↓ ↓ ……
Explanation
Python conditional statements
1. if 2. if...else 3. if...el……
List
1. if Statement…
Explanation
கவனிக்க: if condition : inden……
List
1. IF STATEMENT…
Definition
Condition True ஆக இருந்தால் மட……
Explanation
age = 20 age variable-ல் 20 store செய்கிறோம். if age >= 18: ……
Explanation
False condition
age = 15 if age >= 18: print(……
Output
Result
ஏனெனில் if block skip செய்யப்……
Algorithm
1. IF...ELSE STATEMENT…
Definition
Condition True என்றால் ஒரு block; Fal……
Important
else-க்கு condition எழுதக்கூட……
Program
Program - even or odd
Explanation
num % 2 means remainder. For: 10 % 2……
Definition
Multiple conditions check செய்ய elif பயன்படும்.……
Output
Result
Next: 75 >= 60…
Output
Result
Therefore: Grade B Once condition True ……
Important
Very important
Consider: mark = 95 if mark >= 4……
Why not Excellent? Because first condition: 95 >= 40 alre……
Memory Trick
Multiple ranges check செய்யும……
Program
Example
= 90 = 80 = 70 = 40…
Explanation
else…
Program
Grade program
Algorithm
1. NESTED IF…
Definition
ஒரு if statement-க்கு உள்ளே மற்றொரு if statem……
Flow
age >= 18 ? ↓ True ↓ has_id ?……
Explanation
Nested if else
age = 20 has_id = False if age >= 18: if has_id: ……
Explanation
First: 20 >= 18 True. So inner if check: ……
Comparison
if vs if...else
Comparison
if vs elif
Comparison
elif vs Nested if elif Multiple alternative conditions: if mark >= 90: print("A") elif m……
Explanation
Indentation
Python conditional statements-ல் indentation மிகவும் முக்கியம்.……
Important
Python-ல் C/C++ மாதிரி { } curly braces block define செய்ய தேவையில்……
Explanation
Colon
Conditional statement முடிவில் : ……
Explanation
Boolean condition
if internally condition-ஐ Boolean……
Program
But
Explanation
Truthy falsy
Python: if 10: print("Yes")…
Because non-zero number is Tr……
Because: 0 = Falsy…
Explanation
Logical operators with if
Conditions-ஐ combine செய்ய: and or not பயன்படுத்தலாம். AND Example age = 25 citizen = True if age ……
Explanation
Short hand if
Python supports single-line i……
Explanation
Conditional expression
Python supports conditional expre……
Program
Example
Explanation
result = "Adult" if age >= 18……
இதனை பொதுவாக ternary conditio……
Important
Python-ல் C/C++ style: condition ? value……
Common Mistake
Error 1
= instead of == Wrong: if x = 1……
Remember
= → Assignment == → Comparison…
Common Mistake
Error 2
Missing colon Wrong: if x > 1……
Common Mistake
Error 3
Incorrect indentation Wrong: if ……
Common Mistake
Error 4
elseif Wrong: elseif x > 5: C……
Common Mistake
Error 5
Semicolon unnecessary Python: i……
Common Mistake
Error 6
Wrong condition order Wrong: mark = 9……
Program
Correct
Memory Trick
Conditional statements: IF → If this is true, do it ELSE → Otherwise do this ELIF → O……
TRB Point
1. Python decision-making key……
TRB Point
if…
TRB Point
1. Multiple conditions?…
TRB Point
elif…
TRB Point
1. False/default block?…
TRB Point
else…
TRB Point
1. Python uses block structur……
TRB Point
Indentation…
TRB Point
1. Does Python require curly ……
TRB Point
No…
TRB Point
1. elif means?…
TRB Point
else if…
TRB Point
1. else requires condition?…
TRB Point
No…
TRB Point
1. Which symbol follows an if……
TRB Point
:…
TRB Point
1. Can if exist without else?…
TRB Point
Yes…
TRB Point
1. Can multiple elif blocks e……
TRB Point
Yes…
Interview Point
Question: What are conditional statements in Python? Conditional statements control program flow by executing……
Program
Example
Explanation
Both print statements belong to the if blo……
Explanation
Both conditions independently……
Program
But
Multiple if statements = indep……
MCQ
Which keyword starts a condit……
MCQ
Which keyword means "else if"……
MCQ
What defines code blocks in P……
MCQ
What is the output? x = 10 if……
Algorithm
1. Which is correct syntax?…
A. if x > 5 B.…
if x > 5 { Answer: B…
Algorithm
1. Can if be used without els……
Answer: A…
Algorithm
1. What is nested if?…
Answer: C…
Algorithm
1. What is the output?…
Algorithm
1. Which operator is commonly……
Answer: B…
Algorithm
1. What happens when an if co……
Answer: C…
Algorithm
1. What is the output?…
Practice
Practice 1
Positive or Negative Write a program: n……
Practice
Practice 2
Even or Odd num = 7 if num % ……
Practice
Practice 3
Largest of Two Numbers a = 20 b = 10 ……
Practice
Practice 4
Pass or Fail mark = 35 if mar……
Practice
Practice 5
Voting Eligibility age = 19 if ag……
Summary
Python Conditional Statements: Conditional Statements │ ├── if │ ↓ │ One condition │ ├── if...else │ ↓ │ Two-……
Remember
if → Condition check elif → Another condition e……
Explanation
Short description
Conditional statements என்பது Python program-ன் decision-making mechanism. ஒரு condition True அல்லது False என……
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