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(Business: check ISBN-10) Rewrite the Programming Exercise 3.9 by entering the I

ID: 3792613 • Letter: #

Question

(Business: check ISBN-10) Rewrite the Programming Exercise 3.9 by entering the ISBN number as a string. (Process a string) Write a program that prompts the user to enter a string and displays its length and its first character. (Check SSN) Write a program that prompts the user to enter a Social Security number in the format DDD-DD-DDDD, where D is a digit. Your program should check whether the input is valid. Here are sample runs: (Check substring) Write a program that prompts the user to enter two strings and reports whether the second string is a substring of the first string.

Explanation / Answer

Hi, Please find my implementation.

import java.util.Scanner;

public class SubstringTest {

  

   public static void main(String[] args) {

      

       Scanner sc = new Scanner(System.in);

      

       System.out.print("Enter string s1: ");

       String s1 = sc.next();

      

       System.out.print("Enter string s2: ");

       String s2 = sc.next();

      

       if(s1.contains(s2)){

           System.out.println(s2+" is a substring of "+s1);

       }else{

           System.out.println(s2+" is not a substring of "+s1);

       }

      

   }

}

/*

Sample run:

Enter string s1: ABCD

Enter string s2: BC

BC is a substring of ABCD

Enter string s1: ABCD

Enter string s2: BDC

BDC is not a substring of ABCD

*/