Question

Write a program named Lab7B that will read 2 strings and compare them. Create a bool function named compareLetters that will accept 2 string variables as parameters and will return true if the strings have the same first letters and the same last letters. It will return a false otherwise.

Answer 1

Answer:

import java.util.*;

public class Lab7B {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.println("Enter first String");

       String word1 = in.next();

       System.out.println("Enter Second String");

       String word2 = in.next();

       System.out.println(compareLetters(word1,word2));

   }

   public static boolean compareLetters(String wrd1, String wrd2){

       int len1 = wrd1.length();

       int len2 = wrd2.length();

       if(wrd1.charAt(0)==wrd2.charAt(0)&&wrd1.charAt(len1-1)==wrd2.charAt(len2-1)){

           return true;

       }

       else{

           return false;

       }

   }

}

Explanation:

• Using Java Programming Language
• Import Scanner class to receive user input
• Prompt user for two string and save in variables
• Create the compareLetters method to accept two string parameters
• Using the charAt() function extract the first character (i.e charAt(0)). Extract also the last character (charAt(lengthOfString-1)
• Use if statement to compare the first and last characters and return true or false