Use slice notation [length-2:] to Get the last two characters of string Python. For it, you have to get the length of string and minus 2 char. Simple
example code. It will slice the starting char excluding the last 2 characters. Output: Get the last character of string using len() functionCalculate string length first and then access character at length -1.
Output: d Do comment if you have any doubts and suggestions on this Python char code.
Degree in Computer Science and Engineer: App Developer and has multiple Programming languages experience. Enthusiasm for technology & like learning technical. If you are just trying to get the last character of a string in python then here is the quick answer
Here is an example
However, there are many other ways to get the last value of as string in python; some may be more useful in your situation than others. Below are several techniques showing how to get the last character and last n characters from a string in Python. Indexing in PythonThere are many ways to get the last character of a string in a Python program. To understand all the following examples we must first understand how indexing in Python works. In Python, you can use the square brackets with a number or a slice notation to tell Python what piece of the string you want to grab. So in the example of “stand firm in the faith” there are 23 total characters. Given the 23 characters, the letter “h” is located at index position 22. Why is the last index in the string 22 and not 23? That is because Python starts counting the first index at 0 making the second character at index 1. One other cool feature of Python is that we can also index in reverse! Just use a negative number starting at -1 to select a character in the string. In the case of the index at -1 Python will select the last index of the string.
Last character by indexBelow is an example of how to use the index to get the last character of a string. However, there are issues with this method of hard coding the index. You have to know the exact index to pull from and if you do not know how long the string is before runtime then this method will not work well. We will describe some better methods next.
Last character using the len() functionA more deterministic way of getting the last index in a string is by using
Last character using negative indexesProbably the easiest way to get the last character of a Python string is to use negative indexing. Using negative numbers for an index in Python will start at the end of a string and count towards the beginning. So given a string “stand firm in the faith” if you just want “h”, the last character of the string, then use an index of -1 to get it. The following example shows how to use negative indexes
Caution when dealing with an empty stringAll the methods in the above code have the potential of throwing an exception if we do not put some error checking in the program. In this example, instead of using our original strings we tested with we will create a new string that does not have any characters in it. The below code shows that if we try to read from any index number of the string Python will then throw an exception.
The easy way to fix the above example is by putting in a check to make sure our sample string has a non-zero list of characters in it
That is it, regardless if you are trying grab the first character of the string or any of the last characters of a string it is important to verify the index will exist so that an exception is not thrown Last n characters of a stringAnother one of the different ways available is to grab a set of characters. To do this we will use what Python calls a slice operator
Last n characters using string slicingTo get the last n characters using a slice just select the start and stop index. For example if we want to get the last word of our test string “stand firm in the faith” we would use the starting index of 18 and end at the end of the string using the slice operator
Additionally, we could use a slightly better way of doing the same thing by using the
Last n characters using slices and negative indexingThis one is a little strange, but it may be just what you are looking for. You can use negative indexing to specify the start index and then do not specify the end index to grab the rest of the string.
Last word in a stringIf you are dealing with sentences and are trying to get the last word of a string the best thing to do is use some string manipulation to split up the original string into an array of new strings by using the
Caution when dealing with an empty stringThis is less risky than accessing the index of the last element of the string because the split function will return an array with the contents [’’] in it so an exception will not be thrown. However, it is still good practice to add error handling so that unexpected behavior further down in the program does not occur
There is no error but this is probably not the result our code is expecting. The fix it is similar to the previous error checking example
So regardless if you are checking for the first n characters of a string or the last n characters of the string it is important to make sure at least n number of characters exist. Removing whitespace from a stringIt may be that you are trying to get the last character of a string to see if the individual characters are printable character or a white space character. Instead of writing out that evaluation you can use the one of the built-in string methods. In this example we are going to show how to use the
As you can see the strip method removed the whitespace from the end of the string. So if all you were trying to do was get the last character to see if you needed to remove any white space then the strip method is a much easier way of achieving the same goal. How do I get the last 4 characters of a string?If data is in not in string form, use String.. String lastFourDigits = "" ; //substring containing last 4 characters.. if (input.length() > 4 ) {. lastFourDigits = input.substring(input.length() - 4 ); }. else. {. lastFourDigits = input; }. System. out. println(lastFourDigits);. How do you print the last 3 characters of a string in Python?# Get last character of string i.e. char at index position -1. last_char = sample_str[-1] ... . # get the length of string. length = len(sample_str) ... . sample_str = "Sample String" # Get last 3 character. ... . # get the length of string. length = len(sample_str) ... . **** Get last character of a String in python **** Last character : g.. How do I get the last 5 characters of a string?To get the last N characters of a string, call the slice method on the string, passing in -n as a parameter, e.g. str. slice(-3) returns a new string containing the last 3 characters of the original string.
How do you print the last character of a string in Python?String indexing in Python is zero-based: the first character in the string has index 0 , the next has index 1 , and so on. The index of the last character will be the length of the string minus one. For any non-empty string s , s[len(s)-1] and s[-1] both return the last character.
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