Split numeric, alphabetic and special symbols from a String

Given a string str, divide the string into three parts one containing a numeric part, one containing alphabetic and one containing special characters.
Examples:

Input : geeks01for02geeks03!!!
Output :geeksforgeeks
        010203
        !!!
Here str = "Geeks01for02Geeks03!!!", we scan every character and 
append in res1, res2 and res3 string accordingly.

Input : **Docoding123456789everyday##
Output :Docodingeveryday
        123456789
        **##

Recommended: Please solve it on “PRACTICE” first, before moving on to the solution.

Steps :

Calculate the length of the string.
Scan each every character(ch) of a string one by one
- if (ch is a digit) then append it in res1 string.
- else if (ch is alphabet) append in string res2.
- else append in string res3.
Print the all the strings, we will have one string containing numeric part, other non numeric part and last one contain special characters.

C++

// CPP program to split an alphanumeric 
// string using STL 
#include<bits/stdc++.h> 
using namespace std; 
  
void splitString(string str) 
{ 
    string alpha, num, special; 
    for (int i=0; i<str.length(); i++) 
    { 
        if (isdigit(str[i])) 
            num.push_back(str[i]); 
        else if((str[i] >= 'A' && str[i] <= 'Z') || 
                (str[i] >= 'a' && str[i] <= 'z')) 
            alpha.push_back(str[i]); 
        else
            special.push_back(str[i]); 
    } 
  
    cout << alpha << endl; 
    cout << num << endl; 
    cout << special << endl; 
} 
  
// Driver code 
int main() 
{ 
    string str = "geeks01$$for02geeks03!@!!"; 
    splitString(str); 
    return 0; 
} 

Java

// CPP program to split an alphanumeric 
// string using stringbuffer 
  
class Test 
{ 
    static void splitString(String str) 
    { 
        StringBuffer alpha = new StringBuffer(),  
        num = new StringBuffer(), special = new StringBuffer(); 
          
        for (int i=0; i<str.length(); i++) 
        { 
            if (Character.isDigit(str.charAt(i))) 
                num.append(str.charAt(i)); 
            else if(Character.isAlphabetic(str.charAt(i))) 
                alpha.append(str.charAt(i)); 
            else
                special.append(str.charAt(i)); 
        } 
       
        System.out.println(alpha); 
        System.out.println(num); 
        System.out.println(special); 
    } 
      
    // Driver method 
    public static void main(String args[]) 
    { 
        String str = "geeks01$$for02geeks03!@!!"; 
        splitString(str); 
    } 
} 

Python3

# Python 3 program to split an alphanumeric 
# string using STL 
def splitString(str): 
  
    alpha = "" 
    num = "" 
    special = "" 
    for i in range(len(str)): 
        if (str[i].isdigit()): 
            num = num+ str[i] 
        elif((str[i] >= 'A' and str[i] <= 'Z') or
             (str[i] >= 'a' and str[i] <= 'z')): 
            alpha += str[i] 
        else: 
            special += str[i] 
  
    print(alpha) 
    print(num ) 
    print(special) 
  
# Driver code 
if __name__ == "__main__": 
      
    str = "geeks01$$for02geeks03!@!!"
    splitString(str) 
  
# This code is contributed by ita_c 

C#

// C# program to split an alphanumeric 
// string using stringbuffer 
using System; 
using System.Text;  
  
class GFG  { 
      
    // Fucntion ot split string 
    static void splitString(string str) 
    { 
        StringBuilder alpha =  
                 new StringBuilder(); 
        StringBuilder num =  
                 new StringBuilder(); 
        StringBuilder special =  
                 new StringBuilder(); 
      
        for (int i = 0; i < str.Length; i++) 
        { 
            if (Char.IsDigit(str[i])) 
                num.Append(str[i]); 
            else if((str[i] >= 'A' &&  
                     str[i] <= 'Z') ||  
                     (str[i] >= 'a' &&  
                      str[i] <= 'z')) 
                alpha.Append(str[i]); 
            else
                special.Append(str[i]); 
        } 
      
        Console.WriteLine(alpha); 
        Console.WriteLine(num); 
        Console.WriteLine(special); 
    } 
      
    // Driver code 
    public static void Main() 
    { 
        string str = "geeks01$$for02geeks03!@!!"; 
        splitString(str); 
    } 
} 
  
// This code is contributed by Sam007 

Output:

geeksforgeeks
010203
$$!@!!

Time complexity of above solution is O(n) where n is the length of the string.

This article is contributed by Rishabh Jain. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.

My Personal Notes

Recommended: Please solve it on “PRACTICE” first, before moving on to the solution.

C++

Java

Python3

C#

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