Splitting a string by some delimiter is a very common task. For example, we have a comma separated list of items from a file and we want individual items in an array.
Almost all programming languages, provide function split a string by some delimiter.
In C/C++:
// Splits str[] according to given delimiters. // and returns next token. It needs to be called // in a loop to get all tokens. It returns NULL // when there are no more tokens. char * strtok(char str[], const char *delims);
// A C/C++ program for splitting a string // using strtok() #include <stdio.h> #include <string.h> int main() { char str[] = "Geeks-for-Geeks"; // Returns first token char *token = strtok(str, "-"); // Keep printing tokens while one of the // delimiters present in str[]. while (token != NULL) { printf("%s
", token); token = strtok(NULL, "-"); } return 0; } |
Output:
Geeks for Geeks
In Java :
In Java, split() is a method in String class.
// expregexp is the delimiting regular expression; // limit is the number of returned strings public String[] split(String regexp, int limit); // We can call split() without limit also public String[] split(String regexp)
// A Java program for splitting a string // using split() import java.io.*; public class Test { public static void main(String args[]) { String Str = new String("Geeks-for-Geeks"); // Split above string in at-most two strings for (String val: Str.split("-", 2)) System.out.println(val); System.out.println(""); // Splits Str into all possible tokens for (String val: Str.split("-")) System.out.println(val); } } |
Output:
Geeks for-Geeks Geeks for Geeks
In Python:
// regexp is the delimiting regular expression; // limit is limit the number of splits to be made str.split(regexp = "", limit = string.count(str))
line = "Geek1
Geek2
Geek3"; print line.split() print line.split(' ', 1) |
Output:
['Geek1', 'Geek2', 'Geek3'] ['Geek1', ' Geek2 Geek3']
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