In Java language, Ask the user for a string. Display the length of the string an

Question

In Java language, Ask the user for a string. Display the length of the string and the first 5 characters of the string. Of course, if the string does not have 5 characters, issue an error message. Display the string in upper case, lower case, and display the first and the last character of the string. Create a new string (display its value, too) that holds the first 2 characters of the string followed by the letter X, followed by the exclamation mark (!), followed by the last 3 characters of the string.

Explanation / Answer

Hi,

Please see below the java class and sample output. Pleasecomment for any queries/feedbacks.

Thanks,

Anita

StringCheck.java

import java.util.Scanner;

public class StringCheck {

   public static void main(String [] args){
       Scanner scan = new Scanner(System.in);
       String stringInput = "";
      
       //Asking the user to entera String
       System.out.println("Please Enter a String : ");
       stringInput = scan.nextLine();
      
       //Displaying the length of the string entered
       if(stringInput.length()<5){
           System.out.println("Length of the string is less than 5!");
       }
       else{
           System.out.println("Length : "+stringInput.length());
       }
      
       //UPPER CASE
       System.out.println("Upper Case : "+stringInput.toUpperCase());
      
       //Lower case
       System.out.println("Lower Case : "+stringInput.toLowerCase());
      
       //First and lastcharacter os the string
       System.out.println("First Character : "+stringInput.charAt(0) + " Last Character : "+stringInput.charAt(stringInput.length()-1));
      
       //Creating new String
       String newString = "";
       newString = newString +stringInput.substring(0,2); //getting the first 2 characters of stringInput
      
       newString = newString+"X"+"!";                    // appending X and ! to the newString
      
       //getting the last 3 characters of the newString
       //substring(index) Returns a string that is a substring of this string.
       //The substring begins with the character at the specified index and extends to the end of this string.
       newString = newString + stringInput.substring(stringInput.length()-3);
      
       System.out.println("New String created : "+newString);
      
      
   }

}

Sample Output:

Please Enter a String :
NECtaPhilIa
Length : 11
Upper Case : NECTAPHILIA
Lower Case : nectaphilia
First Character : N Last Character : a
New String created : NEX!lIa

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