java.lang.IllegalStateException: Scanner closed

by

Don’t call eingabeMove.close(); at the end of that while loop. You’re causing the Scanner to become inoperable at the end of the first loop.

Since the loop always terminates with a return, it doesn’t make sense to close the Scanner in this schleife() method.

You actually don’t need to close the Scanner though, because it wraps System.in which never closes anyhow. Given this fact, you can simply let eingabeMove go out of scope when the schleife() returns.

If you really want to close the Scanner, you should pass eingabeMove as a parameter to the method, and close it from the calling method.

public boolean schleife(Scanner eingabeMove) {
   // use the scanner
}

Calling code:

Scanner eingabeMove = new Scanner(System.in);
schleife(eingabeMove);
eingabeMove.close();

More Related Contents:

  1. How do I apply the for-each loop to every character in a String?
  2. Java compressing Strings
  3. Converting a string into an List [closed]
  4. JAVA Looping a formula
  5. Can you explain the output of the following source code?
  6. How System.out.println(s1==s3.intern()); //return true? [closed]
  7. Replace a character at a specific index in a string?
  8. Determine if a String is an Integer in Java [duplicate]
  9. When to use StringBuilder in Java [duplicate]
  10. Why StringBuilder when there is String?
  11. Java Byte Array to String to Byte Array
  12. In Java, how do I parse XML as a String instead of a file?
  13. How to convert object array to string array in Java
  14. How to convert a color integer to a hex String in Android?
  15. Check if a String contains a special character
  16. Why does Java’s concat() method not do anything?
  17. The concatenation of chars to form a string gives different results
  18. Enhanced ‘for’ loop causes an ArrayIndexOutOfBoundsException
  19. Converting to upper and lower case in Java
  20. Sorting 2D array of strings in Java
  21. a confusion about java String literal pool and String’s concatenation
  22. Strings written to file do not preserve line breaks
  23. Java string searching ignoring accents
  24. Increment variable names? [duplicate]
  25. How to convert a Binary String to a base 10 integer in Java
  26. How many string objects will be created in memory? [duplicate]
  27. using labels in java without “loops”
  28. What is a good alternative of LTRIM and RTRIM in Java?
  29. Java : Convert formatted xml file to one line string
  30. Why does byteArray have a length of 22 instead of 20?

Leave a Comment