C++ Examples

C++Program to Check if Given String Contains only uppercase or only lowercase letters

The Program in C++Program to Check if Given String Contains only uppercase or only lowercase letters is given below:

#include <iostream>
#include <string>
#include <cctype>

using namespace std;

bool check_case(string s) {
  bool is_upper = true, is_lower = true;
  for (int i = 0; i < s.length(); i++) {
    if (!isupper(s[i]))
      is_upper = false;
    if (!islower(s[i]))
      is_lower = false;
  }
  return is_upper || is_lower;
}

int main() {
  string input;
  cout << "Hello Codeauri Family,Enter a string here to check if string contains uppercase or lowercase letters:\n ";
  cin >> input;
  if (check_case(input)) {
    if (isupper(input[0]))
      cout << "Well,The string contains only uppercase letters." << endl;
    else
      cout << "Well,The string contains only lowercase letters." << endl;
  } else {
    cout << "Well,The string contains both uppercase and lowercase letters." << endl;
  }
  return 0;
}

Output:

Hello Codeauri Family,Enter a string here to check if string contains uppercase or lowercase letters:
code learning hub
Well,The string contains only lowercase letters.

Learn C-Sharp ↗

C-sharp covers every topic to learn about C-Sharp thoroughly.

Learn C Programming ↗

C-Programming covers every topic to learn about C-Sharp thoroughly.

Learn C++ Programming↗

C++ covers every topic to learn about C-Sharp thoroughly.

Codeauri is Code Learning Hub and Community for every Coder to learn Coding by navigating Structurally from Basic Programming to Front-End Development, Back-End Development to Database, and many more.

Related Posts

C# Program to Find Sum of Rows & Columns of a Matrix

The Program in C# Program to Find Sum of Rows & Columns of a Matrix is given below: Output: Hello Codeauri Family,enter the number of rows and columns…

C# Program to Calculate Determinant of Given Matrix

The Program in C# Program to Calculate Determinant of Given Matrix is given below: Output: Hello Codeauri Family, enter the number of rows and columns of the matrix…

C# Program to Find Sum of right Diagonals of a Matrix

The Program in C# Program to Find Sum of right Diagonals of a Matrix is given below: Output: Hello Codeauri Family, enter the number of rows and columns…

C# Program to Find Transpose of Given Matrix

The Program in C# Program to Find Transpose of Given Matrix is given below: Output: Hello Codeauri Family, enter the number of rows and columns in the matrix:22Enter…

C# Program for Multiplication of two square Matrices

The Program in C# Program for Multiplication of two square Matrices is given below: Output: Hello Codeauri Family, enter the number of rows/columns in the matrices:2Enter the elements…

C# Program to Delete Element at Desired position From Array

The Program in C# Program to Delete Element at Desired position From Array is given below: Output: Hello Codeauri Family, enter the number of elements in the array:4Enter…

Leave a Reply

Your email address will not be published. Required fields are marked *

Your Journey into Code Begins Now: Discover the Wonders of Basic Programming

X