Program to replace every space in a string with hyphen
Given a string, the task is to replace all the spaces between the words with a hyphen character ‘-‘.
Examples:
Input: str = "Geeks for Geeks." Output: Geeks-for-Geeks. Input: str = "A computer science portal for geeks" Output: A-computer-science-portal-for-geeks
Approach:
- Traverse the whole string character by character.
- If the character is a space, replace it with hyphen ‘-‘.
Below is the implementation of the above approach:
C++
// C++ program to replace space with - #include <cstring> #include <iostream> using namespace std; int main() { // Get the String string str = "A computer science portal for geeks"; // Traverse the string character by character. for (int i = 0; i < str.length(); ++i) { // Changing the ith character // to '-' if it's a space. if (str[i] == ' ') { str[i] = '-'; } } // Print the modified string. cout << str << endl; return 0; } |
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Java
// Java program to replace space with - class GFG { // Function to replace Space with - static String replaceSpace(String str) { String s = ""; // Traverse the string character by character. for (int i = 0; i < str.length(); ++i) { // Changing the ith character // to '-' if it's a space. if (str.charAt(i) == ' ') s += '-'; else s += str.charAt(i); } // return the modified string. return s; } public static void main(String []args) { // Get the String String str = "A computer science portal for geeks"; System.out.println(replaceSpace(str)); } } |
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Python3
# Python 3 program to replace space with - # Driver Code if __name__ == '__main__': # Get the String str = "A computer science portal for geeks" # Traverse the string character by character. for i in range(0, len(str), 1): # Changing the ith character # to '-' if it's a space. if (str[i] == ' '): str = str.replace(str[i], '-') # Print the modified string. print(str) # This code is contributed by # Surendra_Gangwar |
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C#
// C# program to replace space with - using System; public class GFG { // Function to replace Space with - static String replaceSpace(String str) { String s = ""; // Traverse the string character by character. for (int i = 0; i < str.Length; ++i) { // Changing the ith character // to '-' if it's a space. if (str[i] == ' ') s += '-'; else s += str[i]; } // return the modified string. return s; } public static void Main() { // Get the String String str = "A computer science portal for geeks"; Console.Write(replaceSpace(str)); } } // This code is contributed by 29AjayKumar |
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PHP
<?php // PHP program to replace space with - // Get the String $str = "A computer science portal for geeks"; // Traverse the string character by character. for ($i = 0; $i < strlen($str); ++$i) { // Changing the ith character // to '-' if it's a space. if ($str[$i] == ' ') { $str[$i] = '-'; } } // Print the modified string. echo $str . "\n"; // This code is contributed // by Akanksha Rai |
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Output:
A-computer-science-portal-for-geeks
Time Complexity: O(N)
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