class 2 (INDEXING &DATA CONVERSION).py

#!/usr/bin/env python
# coding: utf-8

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#indexing  postion
0   1  2  3  4  5
P   Y  T  H  O  N
-6 -5 -4 -3 -2 -1 


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#index position
a="Sachin Tendulkar";
print(a[5]);


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#characters between the index
print(a[3:10]);


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#index postion in reverse order
print(a[-1]);


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#index all the characters  
print(a[:])
print(a[::])


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#index with start: end:intervals postions
print(a[::3])


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#reversing the string
# by only changing the interval from reverse we can reverse the entire string
print(a[::-1]);
print(a[::-3]);


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#index postion of the variable in the array
print(a.index("S"));


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#a postion after interval 
print(a.index("a",3))


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#a position between start aand end value
print(a.index("a",0,3));


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#finding the postion from reverse of the string
print(a.rindex('a'));


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# find the postion of the element 
print(a.find("a"));


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#reverse finding the position of the element
print(a.rfind("a"));


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#index postion of the element not in the string
print(a.index("z"))


# In[43]:


#finding the postion of the element not in the string returns -1
print(a.find("z"));


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#
print(a.find("z"))


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#reverse index of the element not in the string
print(a.rindex("z"))


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#find the element not in the string returns -1
print(a.rfind("z"))


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#count the times of element repeated in the string
print(a.count("a"))


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# spliting the mentioned element from the string
print(a.split("a"))


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#replacing the element mentioned
print(a.replace("a","$"))


# In[59]:


#splitting the element in the mentioned time
print(a.split("a",1))


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#replacing the element in the mentioned time
print(a.replace("a","$",1))


# In[63]:


a="Welcome to the Class"
#capitalize as a tile
print(a.title())
#capitializing only the first element
print(a.capitalize())


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a=123
#type of the data type
print(type(a))
#verfying the data type
print(isinstance(a,int))


# In[75]:


a="123"
#data type
print(type(a))
#checking the data type
print(isinstance(a,int))
#checking is digit or not
print(a.isdigit())


# In[85]:


#converting the data type (tyepcasting)
print(int(a))
a=123
#converting the floating value
print(float(a))
#converting into octal decimal
print(oct(a))
#converting into the hexadecimal 
print(hex(a))


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