string
How to swap String characters in Java?
Since String objects are immutable, going to a char[] via toCharArray, swapping the characters, then making a new String from char[] via the String(char[]) constructor would work. The following example swaps the first and second characters: Result:
Remove specific characters from a string in Python
Strings in Python are immutable (can’t be changed). Because of this, the effect of line.replace(…) is just to create a new string, rather than changing the old one. You need to rebind (assign) it to line in order to have that variable take the new value, with those characters removed. Also, the way you are doing it is going to be kind of … Read more
How to split one string into multiple strings separated by at least one space in bash shell?
Did you try just passing the string variable to a for loop? Bash, for one, will split on whitespace automatically.
warning: ‘characters’ is deprecated: Please use String or Substring directly
Swift 4 introduced changes on string API.You can just use !stringValue.isEmpty instead of stringValue.characters.count > 0 for more information you get the sample from here for e.g
How to use regex in String.contains() method in Java
String.contains String.contains works with String, period. It doesn’t work with regex. It will check whether the exact String specified appear in the current String or not. Note that String.contains does not check for word boundary; it simply checks for substring. Regex solution Regex is more powerful than String.contains, since you can enforce word boundary on … Read more
How to format a string as a telephone number in C#
I have a string “1112224444′ it is a telephone number. I want to format as 111-222-4444 before I store it in a file. It is on a datarecord and I would prefer to be able to do this without assigning a new variable. I was thinking: but that does not seem to do the trick. … Read more
Java get String CompareTo as a comparator object
The Arrays class has versions of sort() and binarySearch() which don’t require a Comparator. For example, you can use the version of Arrays.sort() which just takes an array of objects. These methods call the compareTo() method of the objects in the array.
How can I remove a substring from a given String?
You could easily use String.replace():
Converting String to Cstring in C++
.c_str() returns a const char*. If you need a mutable version, you will need to produce a copy yourself.