Answered Essay: This is my answer. But it is incorrect. Could you help to revise that ?

@@@ < >肛 learn.zybooks.com ○山。 Lab 2 Post Test: COMPUTER Computer Science question.. 3.8. String access operations geval关于初습化boolean( Chegg Study I Gulded Sout >EI Lean.zybooks.... java怎么从string里拿第一个 zyBooks Library > CSCE 1 55A home-3.8: String access operations @ Help/ FAQ θ Bojun Zhong ▼ ACTIVITY3.8.1: Looking for characters. ☆个人收藏 IMG 0264.JPG 4-5学生选课 添加课程11 (0 F22BB1 79-E979-46F2-AA09 20E74856-C89B-4889-85A... Write an expression to detect that the first character of userinput matches firstLetter canner; 3 public class CharMatching 4 public static void main (String args) [ String userInput- char firstLetter = -; userInputbanana firstLetter = b; 10 if (userInput.charAt(e)b) System.out.printlnFound match: firstLetter); 12 13 14 15 16 17 18 else System.out.println(No match: firstletter); return; Testing:banana, b Your output Found match: b ﹀ Testing:·abacus, c. Your output No match: c

This is my answer. But it is incorrect. Could you help to revise that ?

Write an expression to detect that the first character of userinput matches firstLetter. import java.util.Scanner: public class CharMatching { public static void main (String args) { String userInput = “”: char firstLetter = ‘-‘: userInput = “banana”: firstLetter = ‘b’: if (userInput.charAt(0)==’b’) { System.out.println(“Found match: ” + firstLetter): } else { System.out.println(“No match: ” + firstletter): } return: }

Expert Answer

 

Explanation::

  • As in the provided code we do not prompt user to enter string and charater, instead we directly hard code and initialize the variables userInput and firstLetter in code itself.
  • So when I did so I got correct output.
  • The only change I made is in if statement.
  • See the code provided below.

Code in java:

import java.util.Scanner;

public class CharMatching{

public static void main(String[] args){

String userInput=””;

char firstLetter=’-‘;

userInput=”1,2,Buckl my shoe.”;

firstLetter=’1’;

/*

* In if condition below I have changed from ‘b’ to variable name

* firstLetter that stores first character to be checked.

*/

if(userInput.charAt(0)==firstLetter){

System.out.println(“Found match: “+firstLetter);

}else{

System.out.println(“No match:”+firstLetter);

}

return;

}

}

Output::

Another version of code in java where user is asked to enter userInput string and firstLetter character::

Code in java::

import java.util.Scanner;

public class CharMatching{

public static void main(String[] args){

Scanner sc=new Scanner(System.in);

String userInput=””;

char firstLetter=’-‘;

System.out.println(“nEnter the string as userInput::”);

userInput=sc.nextLine();

System.out.println(“nEnter the character as firstLetter::”);

firstLetter=sc.next().charAt(0);;

if(userInput.charAt(0)==firstLetter){

System.out.println(“Found match: “+firstLetter);

}else{

System.out.println(“No match:”+firstLetter);

}

return;

}

}

Output::

Test case 1::

Test case 2::

Test case 3::

Thank you!!

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