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POJava - Unhandled exception error when using "continue" in a for loop?
 

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  1. POJava - Unhandled exception error when using "continue" in a for loop?
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    <p>This is a program that stores 10 unique strings. If the user enters a string that already exists in the array, the user will get an error. My code is working perfectly for the first string that I enter, but throws an exception after that and I don't know why. How do I fix this and make it work?</p> <p>P.S. I don't want to use a Set. I want to do it with an array.</p> <p>Edit: Error name: Exception in thread "main" java.lang.NullPointerException Java Result: 1</p> <p>Thanks.</p> <pre><code> public static void main(String[] args) { Scanner keyboard = new Scanner(System.in); int stringNumber = 0; String[] stringArray = new String[10]; for (int i = 0; i &lt;= stringArray.length; i++) { boolean itemExists = false; out.println("\nEnter a string"); String input = keyboard.next(); if (i &gt; 0) { for (int j = 0; j &lt; stringArray.length; j++) { if (stringArray[j].equalsIgnoreCase(input)) { itemExists = true; out.println("Item \"" + input + "\" already exists."); break; } else { continue; // Unhandled exception error. If I don't have "continue" here, the program doesn't work properly after the first number. } } } if (itemExists == false) { stringArray[stringNumber] = input; out.println("\"" + stringArray[stringNumber] + "\"" + " has been stored."); } else { out.println("Try again."); } PrintArray(stringArray); stringNumber++; } } public static void PrintArray(String[] stringArray) { for (int i = 0; i &lt;= 9; i++) { if (stringArray[i] == null) { out.print(" "); } else { out.print("\nYour strings:"); out.print(" " +stringArray[i] + " "); } } } </code></pre>
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    1. USGregg1989
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    1. COIs it an exception or compiler error? In both the cases, please post the stacktrace or complete error message.
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      1. POJava - Unhandled exception error when using "continue" in a for loop?
      1. USRohit Jain
    2. COError message added in the original post
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      1. POJava - Unhandled exception error when using "continue" in a for loop?
      1. USGregg1989
    3. COYou are lost because you logic is to complicated try to split it into different methods.
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      1. POJava - Unhandled exception error when using "continue" in a for loop?
      1. USDamian Leszczyński - Vash
 

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