Question

in java,

Ask the user for a string. Display the number of whitespace characters in that string.

Standard Input:

this is a test

Required Output:

Enter a String\n
Number of whitespace characters: 3\n

Answer 1

ANSWER: HEre i am giving you the code and output please like it

CODE:

import java.util.*;

public class Main {
  
     
public static void main(String [] args)
{
   Scanner sc= new Scanner (System.in);
  
   String str;
   System.out.println("Enter a String :");
   str=sc.nextLine();
   int len=str.length() - str.replaceAll(" ", "").length();
     
   System.out.println("Number of whitespace characters :"+len);
     
}
}

OUTPUT: