Reversing the given string

We are going to develop a function that will reverse the given
string while preserving the positions of capital letters and 
punctuation marks and spaces
For example --- 
Input : 
  MINtech is the best   
Output : 
 tsebeht si hce tNIM

        

Know more

Lets get started

 
      

        /* now we  are going to create a function that will 
   reverse the given string whithout touching the 
   positions of capital letters . and punctuation marks */ 
 
import java.util.* ; 
public class MINtech{ 
  // Define a static method named "MINtechJAVA" which takes a string as input 
  public static String MINtechJAVA(String str){ 
      // Convert the input string to a character array 
      char[] arr = str.toCharArray() ; 
       
      // Initialize two pointers, "left" and "right", to reverse the string 
      int left = 0 ; 
      int right = arr.length -1 ; 
       
      // Start a loop that continues until "left" is less than "right" 
      while(left < right){
         // Move the "left" pointer to the right while it's not a letter 
          while(left < right && !Character.isLetter(arr[left])){ 
              left++ ; 
          } 
          // Move the "right" pointer to the left while it's not a letter 
          while(left < right && !Character.isLetter(arr[right])){ 
              right -- ; 
          } 
 
         // Swap the characters at the "left" and "right" positions 
         char temp = arr[left] ; 
         arr[left] = arr[right] ; 
         arr[right] = temp ; 
 
         // Move the pointers inward 
         right -- ; 
         left ++ ; 
         } 
         // Convert the character array back to a string and return it 
         return new String(arr) ; 
         } 
     // Main method to execute the program 
	 public static void main(String[] args) { 
	     
		// Create a Scanner object to read user input 
		Scanner sc = new Scanner(System.in); 
		System.out.println("Enter a string that you want to reverse : "); 
		// Read a line of input from the user 
		String str = sc.nextLine(); 
		 
		 // Call the "MINtechJAVA" function and print the reversed string 
		System.out.println(MINtechJAVA(str)); 
	} 
} 
     
 

Output

      Enter a string that you want to reverse : 
      MINtech is amzing
      gnizmas ih cetNIM

      Enter a string that you want to reverse : 
      I Love MINtech
      h cetN IMevoLI

  https://www.toprevenuegate.com/rzm38ght?key=d841e7a69b77ba94bcb8e38c0573aab0
        

https://www.toprevenuegate.com/rzm38ght?key=d841e7a69b77ba94bcb8e38c0573aab0 https://www.toprevenuegate.com/s4ttwmua2u?key=c02c9252219c2ddb8d72b452016a4796

https://www.toprevenuegate.com/s4ttwmua2u?key=c02c9252219c2ddb8d72b452016a4796

https://www.toprevenuegate.com/s4ttwmua2u?key=c02c9252219c2ddb8d72b452016a4796

https://www.toprevenuegate.com/s4ttwmua2u?key=c02c9252219c2ddb8d72b452016a4796

https://www.toprevenuegate.com/s4ttwmua2u?key=c02c9252219c2ddb8d72b452016a4796