Question

(1) Prompt the user to enter a string of their choosing. Output the string. (1 pt)

Ex:

Enter a sentence or phrase:
The only thing we have to fear is fear itself.

You entered: The only thing we have to fear is fear itself.

(2) Complete the getNumOfCharacters() method, which returns the number of characters in the user's string. We encourage you to use a for loop in this function. (2 pts)

(3) In main(), call the getNumOfCharacters() method and then output the returned result. (1 pt)

(4) Implement the outputWithoutWhitespace() method, which outputs the string's characters except for whitespace (spaces, tabs). Note: A tab is '\t'. Call the outputWithoutWhitespace() method in main(). (2 pts)

Ex:

Enter a sentence or phrase:
The only thing we have to fear is fear itself.

You entered: The only thing we have to fear is fear itself.

Number of characters: 46
String with no whitespace: Theonlythingwehavetofearisfearitself.

Answer 1

import java.util.Scanner;

public class TextAnalyzer {
   
   public static int getNumOfCharacters(final String usrStr) {
      
      int numChar = 0;
      int i;
      
      for (i = 0; i < usrStr.length(); i++) {
         
         numChar++;
         
      }
      
      return numChar;
      
   }
   
   public static String outputWithoutWhitespace(String usrStr) {
      
      String noSpaceStr = usrStr.replaceAll(" ", "");
      
      return noSpaceStr;
      
   }
   
   public static void main(String[] args) {
      
      Scanner scnr = new Scanner(System.in);
      
      String inputString;
      int numChar;
      String noSpaceStr;
      
      System.out.println("Enter a sentence or phrase:");
      inputString = scnr.nextLine();
      
      numChar = getNumOfCharacters(inputString);
      noSpaceStr = outputWithoutWhitespace(inputString);
      
      System.out.println("\nYou entered: " + inputString);
      
      System.out.println("\nNumber of characters: " + numChar);
      System.out.println("String with no whitespace: "+ noSpaceStr);
      
   }
   
}