Scanner double value – InputMismatchException

by

You should precise a Locale for your Scanner.

Scanner scanner = new Scanner(System.in).useLocale(Locale.US);

From the doc :

An instance of this class is capable of scanning numbers in the
standard formats as well as in the formats of the scanner’s locale. A
scanner’s initial locale is the value returned by the
Locale.getDefault() method; it may be changed via the
useLocale(java.util.Locale) method

The localized formats are defined in terms of the following
parameters, which for a particular locale are taken from that locale’s
DecimalFormat object, df, and its and DecimalFormatSymbols object,
dfs.

So your default locale use certainly a DecimalFormat that expect a comma as a decimal delimiter instead of a dot.

More Related Contents:

  1. Why am I getting InputMismatchException?
  2. Exception in thread “main” java.util.InputMismatchException
  3. How to check if an integer is in a set of given ranges? [closed]
  4. How can I fix ‘android.os.NetworkOnMainThreadException’?
  5. java.lang.ClassNotFoundException: com.mysql.jdbc.Driver in Eclipse
  6. JAVA cannot make a static reference to non-static field
  7. using sleep() for a single thread
  8. Error:(23, 17) Failed to resolve: junit:junit:4.12
  9. Best Java/Swing browser component? [closed]
  10. What does .pack() do?
  11. Java 1.6: Creating an array of List
  12. Using setValueAt to recreate mutually exclusive check boxes
  13. What is the use of Pattern.quote method?
  14. How can I determine the IP of my router/gateway in Java?
  15. Why does JPasswordField.getPassword() create a String with the password in it?
  16. Convert a String to Double – Java
  17. How does Junit @Rule work?
  18. How to clone a multidimensional array in java? [duplicate]
  19. Anagram algorithm in java
  20. How does BreakIterator work in Android?
  21. Sorting rows by columns in JTable
  22. Java: Date parsing, why do I get an error
  23. What is the equivalent of the C# ‘var’ keyword in Java?
  24. JavaFX – setVisible hides the element but doesn’t rearrange adjacent nodes
  25. Call a servlet on click of hyperlink
  26. Inner class and local variables
  27. Firebase Database points to wrong database URL
  28. org.hibernate.MappingException: Could not determine type for: java.util.Set [duplicate]
  29. How to get current class name including package name in Java?
  30. Replace a class within the Java class library with a custom version

Leave a Comment