day_1.py

#simple printing code
age = 20
year = 2026
temperature = -5
print(age)
print(year)
print(temperature)
  
#This is a program for parameter of square
side=int(input("Enter the size of a side:"))
parameter=4*side
print("The parameter of square =",parameter)

#This is a program for circumference of circle
PI=3.14
radius=float(input("Enter the radius of circle:"))
circumference=2*PI*radius
print("the circumference of circle=",circumference)

#this is a program for simple interest
p=float(input("Enter the value of p:"))
r=float(input("Enter the value of R:"))
t=float(input("Enter the value of t :"))
simple_interest= p*r*t/100
print("THE SIMPLE INTEREST=",simple_interest)

#this is a program for basic maths operations
a = 10
b = 3
print(a + b)   # addition
print(a - b)   # subtraction
print(a * b)   # multiplication
print(a / b)   # division (always returns float)
print(a // b)  # floor division
print(a % b)   # modulus (remainder)
print(a ** b)  # exponent (power)

# To Find the type of different values in Python
# Integer
a = 10
print(a, type(a))   # int

# Float (this replaces double in Python)
b = 10.5
print(b, type(b))  # float

# String (used instead of char)
c = "A"
print(c, type(c))  # str

# String with multiple characters
d = "Hello"
print(d, type(d))  # str

# Boolean
e = True
print(e, type(e))  # bool

# None type (represents no value)
f = None
print(f, type(f))

#Now creating strings
name = "Amrita"
greeting = 'Hello'
sentence = "Python is fun!"
print(name)
print(greeting)
print(sentence)
      
# To find String length
print(len(name))    
print(len(sentence))

# Converting strings to upper and lower case
text = "Hello Python"
print(text.upper())  # HELLO PYTHON
print(text.lower())  # hello python