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Inban-pythonic · web-flow · commit e193831ef224 · 2017-11-25T11:22:40.000+05:30
diff --git a/2.4.b. Python_Strings_Fruits_examples.py b/2.4.b. Python_Strings_Fruits_examples.py
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+#Strings Fruit Examples:
+
+#1.Basic string Example:
+'''s1 = "apple"
+s2 = "banana"
+print(s1)
+print(s2)
+print(s1 + s2)
+print(3*s1)
+print(s2 * 3)
+print(2*s1+2*s2)'''
+
+#Also use format() function to format strings. It also explained how you can
+#get the length of a string using the len() function.
+'''s1 = "orange"
+s2 = "banana"
+for letter in s2:
+    if letter in s2:
+        print(s1, "and", s2, "share the letter", letter)'''
+
+#2. Multi-line Strings:
+
+"""long = "I'm fed up with being treated like sheep. What's the \ point of going abroad if you're just another tourist carted\around in buses surrounded by sweaty mindless oafs from\
+Kettering and Conventry in their Cloth caps and their cardigans\and their transistor radios and their Sunday"
+print(long)"""
+
+#3. Escape sequences.
+#"\n" is a so-called "escape sequence."
+#An escape sequence is a string character written as a backslash followed by
+#code, which can be one or multiple characters.
+
+#4. String indices
+"""fruit = "orange"
+print(fruit[1])
+print(fruit[2])
+print(fruit[3])
+print(fruit[-2])
+print(fruit[-6])
+print(fruit[0])
+print(fruit[-3])"""
+
+#4.1 You can also use variables as indices, and even calculations or function calls:
+
+"""from math import sqrt
+
+fruit = "orange"
+x = 3
+
+print(fruit[3-2])
+print(fruit[int(sqrt(4))])
+print(fruit[2**2])
+print(fruit[int((x-len(fruit))/3)])"""
+
+#4.2 Outside the bounds of the string:
+
+"""fruit = "orange"
+print(fruit[:])
+print(fruit[0:])
+print(fruit[:6])
+print(fruit[:100])
+print(fruit[:len(fruit)])
+print(fruit[1:-1])
+print(fruit[2], fruit[1:6])"""
+
+#4.3 Traversing Strings
+
+#I already explained how you can traverse the characters of a string using a for loop:
+
+'''fruit = 'apple'
+for char in fruit:
+    print(char, '-', end = '')'''
+
+#4.3.1 use indices Traverse string
+
+'''fruit = 'apple'
+
+for i in range(0, len(fruit)):
+    print(fruit[1], "-", end="")
+print()
+
+i = 0
+while i< len(fruit):
+    print(fruit[i], "-", end="")
+    i+=1'''
+
+#4.4 Extended slices
+
+"""fruit = "banana"
+print(fruit[::2])
+print(fruit[1::2])
+print(fruit[::-1])
+print(fruit[::-2])"""
+
+#Reversing a string :
+
+'''fruit = "banana"
+print(fruit[::-1])
+for i in range(5, -1, -1):
+    print(fruit[i])'''
+
+#5 Strings are immutable
+
+'''fruit = "orange"
+fruit[2] = "a" #Runtime error!
+print(fruit)'''
+
+#for instance:
+
+'''fruit = "orange"
+fruit = fruit[:2] + "a" + fruit[3:]
+print(fruit)'''
+
+#6 string methods
+#6.1 strip()
+'''s = "   I have many Fruits  \n         "
+print("["+s+"]")
+s = s.strip()
+print("["+s+"]")'''
+
+#6.2  upper() and lower()
+'''s = "The Meaning of Life"
+print(s)
+print(s.upper())
+print(s.lower())'''
+
+#6.3 find()
+'''s = "We can decorate our garden by growing fruits "
+print(s.find("can"))
+print(s.find("t"))
+print(s.find("t", 12))
+print(s.find("g"))'''
+
+#6.4 replace()
+'''a = 'We can decorate our garden by growing fruits'
+print(s.replace('fruits', 'Trees'))'''
+
+#6.5 split()
+"""s = 'We can decorate our garden by growing fruits'
+wordlist = s.split()
+for word in wordlist:
+    print(word)"""
+
+#6.6 join()
+#join() is the opposite of split():
+'''s = 'We can; decorate our; garden by ; growing fruits'
+wordlist = s.split( ';' )
+s = "".join(wordlist)
+print(s)'''
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