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Program to accept String starting with Capital letter
  • Last Updated : 04 Mar, 2020

Given a string str consisting of alphabets, the task is to check whether the given string is starting with a Capital Letter or Not.

Examples:

Input: str = "GeeksforGeeks"
Output: Accepted

Input: str = "geeksforgeeks"
Output: Not Accepted

Approach:

  • Find the ASCII value of the first character of the string
  • Check if this value lies in the range of [65, 90] or not
  • If yes, print Accepted
  • Else print Not Accepted

Below is the implementation of the above approach:

C++

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// C++ program to accept String
// starting with Capital letter
  
#include <iostream>
using namespace std;
  
// Function to check if first
// character is Capital
int checkIfStartsWithCapital(string str)
{
  
    if (str[0] >= 'A' && str[0] <= 'Z')
        return 1;
    else
        return 0;
}
  
// Function to check
void check(string str)
{
    if (checkIfStartsWithCapital(str))
        cout << "Accepted\n";
    else
        cout << "Not Accepted\n";
}
  
// Driver function
int main()
{
    string str = "GeeksforGeeks";
    check(str);
  
    str = "geeksforgeeks";
    check(str);
  
    return 0;
}

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Java

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// Java program to accept String 
// starting with Capital letter 
class GFG
{
      
    // Function to check if first 
    // character is Capital 
    static int checkIfStartsWithCapital(String str) 
    
      
        if (str.charAt(0) >= 'A' && str.charAt(0)<= 'Z'
            return 1
        else
            return 0
    
      
    // Function to check 
    static void check(String str) 
    
        if (checkIfStartsWithCapital(str) == 1
            System.out.println("Accepted"); 
        else
            System.out.println("Not Accepted"); 
    
      
    // Driver function 
    public static void main (String[] args)
    
        String str = "GeeksforGeeks"
        check(str); 
      
        str = "geeksforgeeks"
        check(str); 
    
}
  
// This code is contributed by AnkitRai01

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Python3

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# Python3 program to accept String 
# starting with Capital letter 
  
# Function to check if first 
# character is Capital 
def checkIfStartsWithCapital(string) : 
  
    if (string[0] >= 'A' and string[0] <= 'Z') :
        return 1
    else :
        return 0
  
# Function to check 
def check(string) : 
  
    if (checkIfStartsWithCapital(string)) : 
        print("Accepted"); 
    else :
        print("Not Accepted"); 
  
# Driver function 
if __name__ == "__main__"
  
    string = "GeeksforGeeks"
    check(string); 
  
    string = "geeksforgeeks"
    check(string); 
  
# This code is contributed by AnkitRai01

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C#

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// C# program to accept String 
// starting with Capital letter 
using System;
  
class GFG
{
      
    // Function to check if first 
    // character is Capital 
    static int checkIfStartsWithCapital(string str) 
    
      
        if (str[0] >= 'A' && str[0]<= 'Z'
            return 1; 
        else
            return 0; 
    
      
    // Function to check 
    static void check(string str) 
    
        if (checkIfStartsWithCapital(str) == 1) 
            Console.WriteLine("Accepted"); 
        else
            Console.WriteLine("Not Accepted"); 
    }
      
    // Driver function 
    public static void Main()
    
        string str = "GeeksforGeeks"
        check(str); 
      
        str = "geeksforgeeks"
        check(str); 
    
}
  
// This code is contributed by AnkitRai01

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Output:

Accepted
Not Accepted

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