# Convert String To Constantcase ## Write a program to convert string to constantcase Constantcase is a style of writing in which all letters are uppercase and spaces are replaced with underscores. ```txt Input : "hello world" Output : "HELLO_WORLD" ``` --- ```c #include int main() { char str[10000] = "hello world"; for (int i = 0; str[i]; i++) { if (str[i] > 'a' && str[i] < 'z') { str[i] = (char)((str[i] - 'a') + 'A'); } if (str[i] == ' ') { str[i] = '_'; } } printf("%s\n", str); } ``` ```cpp #include ///////////////////////////////////////////////////////////////////// void ConvertStringToConstantcase(std::string&); ///////////////////////////////////////////////////////////////////// int main() { std::string input; getline(std::cin,input); ConvertStringToConstantcase(input); std::cout << input << std::endl; return 0; } ///////////////////////////////////////////////////////////////////// void ConvertStringToConstantcase(std::string& str) { for(size_t i = 0; i < str.size(); ++i) { if(str[i] == ' ') { str[i] = '_'; } else if(str[i] >= 'a' && str[i] <= 'z') { str[i] = str[i] - 32; } } } ///////////////////////////////////////////////////////////////////// ``` ```csharp using System; public class Program { public static void Main() { Console.WriteLine(ConvertToConstantCase("Hello world!")); } public static string ConvertToConstantCase(string input) { return input.Replace(' ', '_').ToUpper(); } } ``` ```java import java.util.Scanner; public class ConvertStringToConstantcase { public static void main(String[] args) { Scanner sc = new Scanner(System.in); String a = sc.nextLine(); System.out.print("Input: "); String b = a.replace(' ', '_'); System.out.println(b.toUpperCase()); sc.close(); } } ``` ```javascript function stringToConstantcase(str) { let splitLettersArray = str.toUpperCase().split(""); for (let i = 0; i < splitLettersArray.length; i++) { if (splitLettersArray[i] === " ") { splitLettersArray[i] = "_"; } } console.log(splitLettersArray.join("")); } stringToConstantcase("hello world"); ``` ```kotlin import java.util.Scanner fun main() { print("Enter String : ") println() var min = readLine() println("Constant Case: " + ConvertStringToConstantcase(min!!.split(" "))) } private fun ConvertStringToConstantcase(args: List): String { val buffer = StringBuffer() for((index,day) in args.withIndex()){ //println("$index :$day") if(index == 0) { buffer.append(day.uppercase()); } else { buffer.append("_").append(day.uppercase()) } } return buffer.toString() } ``` ```ruby puts "Please enter a string: " input_string = gets def converStringToConstantCase string string.upcase.gsub(" ", "_") end puts converStringToConstantCase input_string ``` ```swift import Foundation func convertToConstantCase(input: String) -> String { return input.uppercased().replacingOccurrences(of: " ", with: "_") } // Taking input from the user print("Enter a string: ", terminator: "") if let userInput = readLine() { let output = convertToConstantCase(input: userInput) print("Constant Case: \(output)") } else { print("Invalid input") } ``` ```typescript const convertStringToConstantCase = (text: string): string => { return text.replace(" ", "_").toUpperCase(); }; console.log(convertStringToConstantCase("hello world")); // HELLO_WORLD ``` ```julia println("Enter a string: ") s = readline() s = replace(uppercase(s), " " => "_") println("Given string in constantcase: ", s) ``` ```scala object convertStringToConstantcase { def printConstantcase(str: String): String = { //Array of string to store the words val strArray = str.split(" ") val strArrayLength = strArray.length //Variable to store the final string var finalStr = "" //Loop to iterate over the words for (i <- 0 until strArrayLength) { finalStr += strArray(i).toUpperCase // If it is not the last word of the string add underscore then proceed if (i != strArrayLength - 1) { finalStr += "_" } } return finalStr } def main(args: Array[String]): Unit = { val str = "Hello World" println(printConstantcase(str)) } } ``` ```go package main import ( "fmt" "strings" ) func main() { str := "hello world" // Convert all letters to uppercase. str = strings.ToUpper(str) // Replace all spaces with underscores. str = strings.Replace(str, " ", "_", -1) fmt.Println(str) } ``` ```php

Convert String To Constantcase

Write a program to convert string to constantcase

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