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POProgramming Hangman in Java, exception in main thread error (along with others)
 

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  1. POProgramming Hangman in Java, exception in main thread error (along with others)
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    <p>So I have this program somewhat functional so far. I've been using switch statements. I'm not sure if that's proper logic for this, but I have it working. When I input the word I want, it works, and starts drawing the hangman after the first input, but then runs into an error.</p> <pre><code> public class Hangman { public static void main (String[] args){ JFrame frame = new JFrame ("Hangman"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); HangmanPanel Panel = new HangmanPanel(); frame.getContentPane().add(Panel); frame.pack(); frame.setVisible(true); } } </code></pre> <p>here's my other class</p> <pre><code> import javax.swing.JPanel; import java.awt.event.*; import javax.swing.*; import java.util.Random; import java.util.Scanner; import java.io.*; import java.util.Scanner; public class HangmanPanel extends JPanel { int lives; String guessletter; String inputw; char[] hiddenWord; char[] aOfWord; String[] words = { "ADA", "COBOL", "LOGO", "BASIC", "PROLOG", "UBUNTU", "UHURU" }; Scanner scan = new Scanner(System.in); boolean isFound; int a; public HangmanPanel() { System.out.println("Enter the word to be searched: "); inputw = scan.nextLine(); aOfWord = inputw.toCharArray(); this.setLives(inputw.length()); // this.output(); hiddenWord = new char[aOfWord.length]; for (int j = 0; j &lt; hiddenWord.length; j++) hiddenWord[j] = '*'; this.output(); while (lives &gt; 0) System.out.println("Please choose a letter: "); guessletter = scan.nextLine(); this.checkForMatch(guessletter); if (isFound == true) { hiddenWord[a] = guessletter.charAt(0); } else { System.out.println("_____"); System.out.println("| |"); System.out.println("| "); System.out.println("| "); System.out.println("| "); this.reduceLives(); while (lives &gt; 0) System.out.println("Please choose a letter: "); guessletter = scan.nextLine(); this.checkForMatch(guessletter); if (isFound == true) { hiddenWord[a] = guessletter.charAt(1); } else { System.out.println("_____"); System.out.println("| |"); System.out.println("| o"); System.out.println("| "); System.out.println("| "); this.reduceLives(); } while (lives &gt; 0) System.out.println("Please choose a letter: "); guessletter = scan.nextLine(); this.checkForMatch(guessletter); if (isFound == true) { hiddenWord[a] = guessletter.charAt(2); } else { System.out.println("_____"); System.out.println("| |"); System.out.println("| o"); System.out.println("| | "); System.out.println("| "); this.reduceLives(); } while (lives &gt; 0) System.out.println("Please choose a letter: "); guessletter = scan.nextLine(); this.checkForMatch(guessletter); if (isFound == true) { hiddenWord[a] = guessletter.charAt(3); } else { System.out.println("_____"); System.out.println("| |"); System.out.println("| o"); System.out.println("| /| "); System.out.println("| "); this.reduceLives(); } while (lives &gt; 0) System.out.println("Please choose a letter: "); guessletter = scan.nextLine(); this.checkForMatch(guessletter); if (isFound == true) { hiddenWord[a] = guessletter.charAt(4); } else { System.out.println("_____"); System.out.println("| |"); System.out.println("| o"); System.out.println("| /|\\ "); System.out.println("| "); this.reduceLives(); } while (lives &gt; 0) System.out.println("Please choose a letter: "); guessletter = scan.nextLine(); this.checkForMatch(guessletter); if (isFound == true) { hiddenWord[a] = guessletter.charAt(5); } else { System.out.println("_____"); System.out.println("| |"); System.out.println("| o"); System.out.println("| /|\\ "); System.out.println("| \\"); this.reduceLives(); } while (lives &gt; 0) System.out.println("Please choose a letter: "); guessletter = scan.nextLine(); this.checkForMatch(guessletter); if (isFound == true) { hiddenWord[a] = guessletter.charAt(6); } else { System.out.println("_____"); System.out.println("| |"); System.out.println("| o"); System.out.println("| /|\\"); System.out.println("| / \\"); this.reduceLives(); } } this.output(); } public void setLives(int a) { this.lives = a; } public void reduceLives() { lives = lives - 1; System.out.println("Lives remaining: " + this.getLives()); } public int getLives() { return lives; } public void output() { System.out.println("Lives remaining: " + this.getLives()); System.out.println("Word found so far "); for (int i = 0; i &lt; hiddenWord.length; i++) { System.out.print(hiddenWord[i] + "\n"); } } public void checkForMatch(String l) { for (int i = 0; i &lt; aOfWord.length; i++) { if (l.charAt(0) == aOfWord[i]) { isFound = true; a = i; break; } else { isFound = false; } } } } </code></pre>
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      1. VTUpMod
    1. COPost the Error here please?
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      1. POProgramming Hangman in Java, exception in main thread error (along with others)
      1. USiWumbo
    2. COYou do not `break` or `return` after each `case`, so possibly your code is running proceduraly and giving you unexpected errors.
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      1. USSnakeDoc
    3. COI don't think breaks would matter much in this case since all cases are mutually exclusive.
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      1. USThat Umbrella Guy
 

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