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Code String

Swap characters in string

Here given code implementation process.

//C Program 
//Swap characters in string
#include<stdio.h>

//Swap the string element of given indexes
void swap(char text[],int size,int a,int b)
{
  if((a>=0 && a<size)  && (b >= 0 && b < size))
  {
    //When valid a and b location
    char temp = text[a];
    text[a] = text[b];
    text[b] = temp;
  }

}

int main()
{


  char info[]="ABCDEF";

  //Get the size of string
  int size = sizeof(info)/sizeof(info[0])-1;

  int a = 0;
  int b = 4;
  printf("%s\n",info );
  swap(info,size,a,b);
  printf("%s\n",info );

  return 0;
}

Output

ABCDEF
EBCDAF
//C++ Program 
//Swap characters in string
#include <iostream>
#include <string.h>
using namespace std;
class MyString
{
public:
  //Swap the string element of given indexes
  string swap(string text,int size,int a,int b)
  {
    if((a>=0 && a<size)  && (b >= 0 && b < size))
    {
      //When valid a and b location
      char temp = text[a];
      text[a] = text[b];
      text[b] = temp;

    }
    //return modified result
    return text;
  }

};
int main(int argc, char const *argv[])
{
  MyString obj;

  string info ="ABCDEF";
  //Get the size of string
  int size = info.length();
  int a = 0;
  int b = 4;
  cout<<info<<endl;
  info = obj.swap(info,size,a,b);
  cout<<info<<endl;
  return 0;
}

Output

ABCDEF
EBCDAF
/*
  Java Program
  Swap characters in string
*/
public class MyString {

  //Swapping two string elements by index
  public String swap(String text,int size,int a,int b)
  {
    //Check valid location of swap element
    if((a>=0 && a<size)  && (b >= 0 && b < size))
    {
      //Get first character
      char first = text.charAt(a);

      //Get second character
      char second = text.charAt(b);

      //Put character
      text = text.substring(0, b) 
                + first 
                + text.substring(b + 1);

      text = text.substring(0, a) 
                + second
                + text.substring(a + 1);
    }

    return text;
  }
  public static void main(String[] args) {
    MyString obj = new MyString();
    
    String info ="ABCDEF";
    //Get the size of string
    int size = info.length();
    //Location
    int a = 0;
    int b = 4;
    System.out.print(info+"\n");

    info = obj.swap(info,size,a,b);

    System.out.print(info+"\n");
  }
}

Output

ABCDEF
EBCDAF
using System;

/*
  C# Program
  Swap characters in string
*/

public class MyString {
  //Swapping two string elements by index
  public String swap(String text, int size, int a, int b) {
    //Check valid location of swap element

    if ((a >= 0 && a < size) && (b >= 0 && b < size)) {
      //Get first character
      char first = text[a];
      //Get second character
      char second = text[b];
      //Put characters
      text = text.Substring(0, b) + first + text.Substring(b + 1);
      text = text.Substring(0, a) + second + text.Substring(a + 1);
    }
        //important this text are modified inside a function.  
        //return modified text and assign on actual text variable
    return text;
  }
  public static void Main(String[] args) {
    MyString obj = new MyString();
    String info = "ABCDEF";
    //Get the size of string
    int size = info.Length;
    //Location
    int a = 0;
    int b = 4;
    Console.Write(info + "\n");
    info = obj.swap(info, size, a, b);
    Console.Write(info + "\n");
  }
}

Output

ABCDEF
EBCDAF
<?php
/*
  Php Program
  Swap characters in string
*/
class MyString {
  //Swapping two string elements by index
  public  function swap($text, $size, $a, $b) {
    //Check valid location of swap element

    if (($a >= 0 && $a < $size) && ($b >= 0 && $b < $size)) {
      //Get first character
      $first = $text[$a];
      //Get second character
      $second = $text[$b];
      //Put character
      $text = substr($text,0, $b-strlen($text)) . $first .substr($text,$b+1 );
 
      $text = substr($text,0, $a-strlen($text)) . $second .substr($text,$a+1 );
    }
    return $text;
  }
}

function main() {
  $obj = new MyString();
  $info = "ABCDEF";
  //Get the size of string
  $size = strlen($info);
  //Location
  $a = 0;
  $b = 4;
  echo($info ."\n");
  $info = $obj->swap($info, $size, $a, $b);
  echo($info ."\n");

}
main();

Output

ABCDEF
EBCDAF
/*
  Node Js Program
  Swap characters in string
*/
class MyString {
  //Swapping two string elements by index
  swap(text, size, a, b) {
    //Check valid location of swap element

    if ((a >= 0 && a < size) && (b >= 0 && b < size)) {
      //Get first character
      var first = text[a];
      //Get second character
      var second = text[b];
      //Put character
      text = text.substring(0, b) + first + text.substring(b + 1);
      text = text.substring(0, a) + second + text.substring(a + 1);
    }

    return text;
  }
}

function main(args) {
  var obj = new MyString();
  var info = "ABCDEF";
  //Get the size of string
  var size = info.length;
  //Location
  var a = 0;
  var b = 4;
  process.stdout.write(info + "\n");
  info = obj.swap(info, size, a, b);
  process.stdout.write(info + "\n");
}

main();

Output

ABCDEF
EBCDAF
#  Python 3 Program
#  Swap characters in string
class MyString :
  # Swapping two string elements by index
  def swap(self, text, size, a, b) :
    # Check valid location of swap element
    if ((a >= 0 and a < size) and(b >= 0 and b < size)) :
      data = list(text)
      data[a],data[b] = data[b],data[a]
      return ''.join(data)

    return text
  

def main() :
  obj = MyString()
  info = "ABCDEF"
  # Get the size of string
  size = len(info)
  # Location
  a = 0
  b = 4
  print(info ,"\n", end = "")
  info = obj.swap(info, size, a, b)
  print(info ,"\n", end = "")


if __name__ == "__main__":
  main()

Output

ABCDEF
EBCDAF
# Ruby Program
# Swap characters in string
class MyString 
   # Swapping two string elements by index
  def swap(text, size, a, b) 
     # Check valid location of swap element
    if ((a >= 0 && a < size) && (b >= 0 && b < size)) 
       # Get first character
      first = text[a]
      text[a]=text[b]
      text[b]=first
    end
    return text
  end
end
def main() 
  obj = MyString.new()
  info = "ABCDEF"
   # Get the size of string
  size = info.length()
   # Location
  a = 0
  b = 4
  print(info ,"\n")
  info = obj.swap(info, size, a, b)
  print(info ,"\n")
end
main()

Output

ABCDEF
EBCDAF

/*
  Scala Program
  Swap characters in string
*/
class MyString {
  //Swapping two string elements by index
  def swap(info: String, size: Int, a: Int, b: Int): String = {
    //Check valid location of swap element
        var text = info;
    if ((a >= 0 && a < size) && (b >= 0 && b < size)) {
      //Get first character
      val first: Char = text(a);

      //Get second character
      val second: Char = text(b);

      //Put character
      text = text.substring(0, b) + first + text.substring(b + 1);
      text = text.substring(0, a) + second + text.substring(a + 1);
    }
    return text;
  }
}
object Main {
  def main(args: Array[String]): Unit = {
    val obj: MyString = new MyString();
    var info: String = "ABCDEF";

    //Get the size of string
    val size: Int = info.length();

    //Location
    val a: Int = 0;
    val b: Int = 4;
    print(info + "\n");
    info = obj.swap(info, size, a, b);
    print(info + "\n");
  }
}

Output

ABCDEF
EBCDAF
/*
  Swift Program
  Swap characters in string
*/
class MyString {
  //Swapping two string elements by index
  func swap(_ text: String, _ size: Int, _ a: Int, _ b: Int) -> String {
    //Check valid location of swap element

    if ((a >= 0 && a < size) && (b >= 0 && b < size)) {
      var result = Array(text)
            result.swapAt(a, b)
            return String(result)
    }
    return text;
  }
}
func main() {
  let obj: MyString = MyString();
  var info: String = "ABCDEF";
  //Get the size of string
  let size: Int = info.count;
  //Location
  let a: Int = 0;
  let b: Int = 4;
  print(info ,"\n", terminator: "");
  info = obj.swap(info, size, a, b);
  print(info ,"\n", terminator: "");
}
main();

Output

ABCDEF
EBCDAF

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