Overview
if-else statements program ko condition ke hisaab se decision lene dete hain.
Analogy
Jaise traffic signal—green par chalte hain, red par rukते hain.
Step-by-step
- if condition: likho
- Condition True hone par execute hone wala code add karo
- elif se aur conditions add karo
- else se default case handle karo
Visual
if x > 0:
print("Positive")
elif x == 0:
print("Zero")
else:
print("Negative")
Common mistakes
- Condition ke baad colon bhool jana
- Indentation galti
- Comparison mein = use karna (== hona chahiye)
Practice questions
- Temperature ko thanda/comfortable/garam classify karo
- Grade checker if-elif-else se banao