{"id":6937,"date":"2023-10-31T08:23:15","date_gmt":"2023-10-31T02:53:15","guid":{"rendered":"https:\/\/python-programs.com\/?p=6937"},"modified":"2023-11-10T12:08:35","modified_gmt":"2023-11-10T06:38:35","slug":"how-to-reverse-a-string-in-python","status":"publish","type":"post","link":"https:\/\/python-programs.com\/how-to-reverse-a-string-in-python\/","title":{"rendered":"How to Reverse a String in Python"},"content":{"rendered":"
String:<\/strong><\/p>\n Arrays are Strings. Strings in Python, like many other common programming languages, are sequences of bytes that represent unicode characters. However, since Python lacks a character data form, a single character is simply a one-length string. Square brackets may be used to access the string’s components.<\/p>\n Given a string , the task is to reverse the given string in Python.<\/p>\n Examples:<\/strong><\/p>\n Example1:<\/strong><\/p>\n Input:<\/strong><\/p>\n Output:<\/strong><\/p>\n Example2:<\/strong><\/p>\n Input:<\/strong><\/p>\n Output:<\/strong><\/p>\n Explanation: <\/strong><\/p>\n Example3:<\/strong><\/p>\n Input:<\/strong><\/p>\n Output:<\/strong><\/p>\n Here it ignores the case so the reversed string contains many uppercase characters.<\/p>\n There are several ways to reverse the string in python some of them are:<\/p>\n Explore more instances related to python concepts from\u00a0Python Programming Examples<\/a>\u00a0Guide and get promoted from beginner to professional programmer level in Python Programming Language.<\/p>\n Approach:<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n We can reverse the string easily by using join() and reversed string like below.<\/p>\n Approach:<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n Approach:\u00a0<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n Approach:<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n This method is similar to method #2(using for loop)<\/p>\n Approach:\u00a0<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n These are methods to print the reversed string we can print directly by using loops and range() function but it doesn’t reverse the string it just print the reversed value of string. String: Arrays are Strings. Strings in Python, like many other common programming languages, are sequences of bytes that represent unicode characters. However, since Python lacks a character data form, a single character is simply a one-length string. Square brackets may be used to access the string’s components. Given a string , the task is to …<\/p>\ngiven_string=\"vikram\"<\/pre>\n
The reversed string of vikram = markiv<\/pre>\n
given_string=\"wor45rd\"<\/pre>\n
The reversed string of wor45rd = dr54row<\/pre>\n
Here 4,5 are also considered as character so it is reversed succesfully<\/pre>\n
given_string=\"BTechGeeks\"<\/pre>\n
The reversed string of BTechGeeks = skeeGhceTB<\/pre>\n
Reverse the string in Python<\/h2>\n
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Method #1: Using Slicing<\/h3>\n
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# given string\r\ngiven_string = \"vikram\"\r\n# calculating the length of string\r\nlength = len(given_string)\r\n# Reversing the string using slicing\r\nreverse_string = given_string[len(given_string)::-1]\r\n# print the reversed string\r\nprint(\"The reversed string of\", given_string, \"=\", reverse_string)\r\n<\/pre>\n
The reversed string of vikram = markiv<\/pre>\n
Method #2: Using join() and reversed function<\/h3>\n
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# given string\r\ngiven_string = \"vikram\"\r\n# reversing using join and reversed function\r\nrev_string = ''.join(reversed(given_string))\r\n# print the reversed string\r\nprint(\"The reversed string of\", given_string, \"=\", rev_string)\r\n<\/pre>\n
The reversed string of vikram = markiv<\/pre>\n
Method #3:Using for loop and string concatenation<\/h3>\n
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# given string\r\ngiven_string = \"vikram\"\r\n# taking empty string\r\nreverse_string = \"\"\r\n# calculating the length of string\r\nlength = len(given_string)\r\n# Traverse the strnum string in reverse order using for loop range function\r\nfor index in range(length-1, -1, -1):\r\n # add the character to reverse_string using string concatenation\r\n reverse_string = reverse_string+given_string[index]\r\n# print the reversed string\r\nprint(\"The reversed string of\", given_string, \"=\", reverse_string)\r\n<\/pre>\n
The reversed string of vikram = markiv<\/pre>\n
Method #4:Using list\u00a0 and join functions<\/h3>\n
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# given string\r\ngiven_string = \"vikram\"\r\n# converting to list of characters\r\nstringlist = list(given_string)\r\n# reverse the list\r\nstringlist.reverse()\r\n# convert this list to string using join\r\nreverse_string = ''.join(stringlist)\r\n# print the reversed string\r\nprint(\"The reversed string of\", given_string, \"=\", reverse_string)\r\n<\/pre>\n
The reversed string of vikram = markiv<\/pre>\n
Method #5 : Using while loop<\/h3>\n
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# given string\r\ngiven_string = \"vikram\"\r\n# taking empty string\r\nreverse_string = \"\"\r\n# calculating the length of string\r\nlength = len(given_string)-1\r\n# using while loop\r\nwhile(length >= 0):\r\n # adding the character of string to reverse_string\r\n reverse_string = reverse_string+given_string[length]\r\n # decrement the length\r\n length = length-1\r\n# print the reversed string\r\nprint(\"The reversed string of\", given_string, \"=\", reverse_string)\r\n<\/pre>\n
The reversed string of vikram = markiv<\/pre>\n
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