Find the output of the following:

word = 'work hard'
result = word.find('work')
print("Substring, 'work', found at index:", result)
result = word.find('har') 
print("Substring, 'har ' ,found at index:", result)
if (word.find('pawan') != -1):
    print("Contains given substring ")
else: 
    print("Doesn't contain given substring")

Consider the following string mySubject:

mySubject = "Computer Science"

What will be the output of the following string operations?

(i) print (mySubject [0:len(mySubject)])

(ii) print (mySubject[-7:-1])

(iii) print (mySubject[::2])

(iv) print (mySubject [len (mySubject) -1])

(v) print (2*mySubject)

(vi) print (mySubject[::-2])

(vii) print (mySubject[:3] + mySubject[3:])

(viii) print (mySubject.swapcase() )

(ix) print (mySubject.startswith('Comp') )

(x) print (mySubject.isalpha() )

Consider the string str1 = "Global Warming".

Write statements in Python to implement the following:

(a) To display the last four characters.

(b) To replace all the occurrences of letter 'a' in the string with "*".

What will be the output of the following code?

Text = "Mind@Work!" 
ln = len(Text)
nText = ""
for i in range(0, ln):
    if Text[i].isupper():
        nText = nText + Text[i].lower()
    elif Text[i].isalpha(): 
        nText = nText + Text[i].upper() 
else: 
    nText = nText + 'A'
print(nText)