Question

I have written a short String reverse program in C++. I decided to write it in Java, and so I did. However, once I completed writing the program, I encountered several errors that I have tried to fix but cannot fix. One of the errors was an ArrayOutOfBounds exception. Please help me fix the errors. The C++ program worked fine. Below is the Java code. Please note that I do not want to use inbuilt functions.

import java.util.Scanner;

public class Main{
    public static void main(String[] args){
      Scanner scan = new Scanner(System.in);
      String word;
      int i = 0;
      boolean inp = true;
      System.out.println("Enter one or more words to be reversed:");
      word = scan.nextLine();
      char wordArray[] = word.toCharArray();
      while(wordArray[i]!='\0')
          i++;
      while(inp == true){
          i--;
          System.out.println(wordArray[i]);
          if(i==0){
              System.out.println();
              break;
          }
        }
     }
  }

Answer 1

There is no null-terminating character in Java strings; they have a length() method you should use to determine length.

Also, the while loop would be more idiomatic as:

while (true) {
    ...
}

Or as a simple for loop.