Given a string name, we have to find the initials of the name
Examples:
Input : prabhat kumar singh Output : P K S We take the first letter of all words and print in capital letter. Input : Jude Law Output : J L Input : abhishek kumar singh Output : A K S
1) Print first character in capital.
2) Traverse rest of the string and print every character after space in capital letter.
C++
// C++ program to print initials of a name #include <bits/stdc++.h> using namespace std; void printInitials(const string& name) { if (name.length() == 0) return; // Since touuper() returns int, we do typecasting cout << (char)toupper(name[0]); // Traverse rest of the string and print the // characters after spaces. for (int i = 1; i < name.length() - 1; i++) if (name[i] == ' ') cout << " " << (char)toupper(name[i + 1]); } // Driver code int main() { string name = "prabhat kumar singh"; printInitials(name); return 0; } |
Java
// Java program to print initials of a name class initials { static void printInitials(String name) { if (name.length() == 0) return; // Since touuper() returns int, // we do typecasting System.out.print(Character.toUpperCase( name.charAt(0))); // Traverse rest of the string and // print the characters after spaces. for (int i = 1; i < name.length() - 1; i++) if (name.charAt(i) == ' ') System.out.print(" " + Character.toUpperCase( name.charAt(i + 1))); } // Driver code public static void main(String args[]) { String name = "prabhat kumar singh"; printInitials(name); } } // This code is contributed by Danish Kaleem |
Python
# Python program to print # initials of a name # user define function def printInitials(name): if(len(name) == 0): return print(name[0].upper()), for i in range(1, len(name) - 1): if (name[i] == ' '): print (name[i + 1].upper()), def main(): name = "Prabhat Kumar Singh" printInitials(name) if __name__=="__main__": main() # This code is contributed # by prabhat kumar singh |
C#
// C# program to print initials of a name using System; class initials { static void printInitials(String name) { if (name.Length == 0) return; // Since touuper() returns int, // we do typecasting Console.Write(Char.ToUpper(name[0])); // Traverse rest of the string and // print the characters after spaces. for (int i = 1; i < name.Length - 1; i++) if (name[i] == ' ') Console.Write(" " + Char.ToUpper(name[i + 1])); } // Driver code public static void Main() { String name = "prabhat kumar singh"; printInitials(name); } } // This code is contributed by nitin mittal. |
PHP
<?php // php program to print initials of a name function printInitials($name) { if (strlen($name) == 0) return; // Since touuper() returns int, we do typecasting echo strtoupper($name[0]); // Traverse rest of the string and print the // characters after spaces. for ($i = 1; $i < strlen($name) - 1; $i++) if ($name[$i] == ' ') echo " " . strtoupper($name[$i + 1]); } // Driver code $name = "prabhat kumar singh"; printInitials($name); // This code is contributed by Sam007 ?> |
Output:
P K S
Another possible solution is given as follows:
Java
// Java program to print initials of a name class initials { static void printInitials(String name) { if (name.length() == 0) return; //split the string using 'space' //and print the first character of every word String words[] = name.split(" "); for(String word : words) { System.out.print(Character.toUpperCase(word.charAt(0)) + " "); } } // Driver code public static void main(String args[]) { String name = "prabhat kumar singh"; printInitials(name); } } |
Output:
P K S
The complexity of this code will be less than O(w) where w is number of words in sentence, which can be little better than number of characters in String.
This code is contributed by Anuj Khasgiwala
We can also use strtok() function in C/C++ to achieve this.
This article is contributed by Prabhat kumar singh. 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.
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