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How-to articles, tricks, and solutions about STRING

A quick and easy way to join array elements with a separator (the opposite of split) in Java

To join array elements with a separator in Java, you can use the join method from the String class.

java string arrays

Alphabet range in Python

In Python, you can use the string module's ascii_lowercase and ascii_uppercase constants to get the range of lowercase and uppercase letters in the ASCII character set respectively.

string list python alphabet

Android Split string

To split a string in Android, you can use the split() method of the String class.

java string android

Append a single character to a string or char array in java?

To append a single character to a string or char array in Java, you can use the + operator or the concat method for strings, or you can use the Arrays.copyOf method for char arrays.

java string append

Best way to convert an ArrayList to a string

To convert an ArrayList to a string in Java, you can use the join method of the String class, which allows you to join the elements of the ArrayList into a single string. Here's an example of how you might do this:

java string arraylist

Best way to convert string to bytes in Python 3?

In Python 3, you can convert a string to bytes using the bytes function.

string python character-encoding python-3.x

Best way to strip punctuation from a string

One way to strip punctuation from a string is to use the str.translate() method in combination with the string.punctuation constant.

string python punctuation

Changing one character in a string

Here is a code snippet that demonstrates how to change a single character in a string in Python:

string python

Check and extract a number from a String in Java

To check if a string contains a number and extract the number from the string in Java, you can use a combination of the matches method of the String class and the find method of the Matcher class.

java string regex

Check if a String contains a special character

To check if a String contains a special character in Java, you can use a regular expression to match any character that is not a letter or a digit.

java string special-characters