I am learning Java and I have some kinds of error"Exception in thread"

by

There are two problems.

First, your printf is expecting 4 arguments, but you are supplying only one.

Second, %d says you are expecting the argument to be a number, but you are providing a String.

System.out.printf("%d%n%d%n%d%n%d%n", 1, 2, 3, 4);

More Related Contents:

  1. try/catch with InputMismatchException creates infinite loop
  2. Text wrap in JOptionPane?
  3. UnsupportedOperationException when trying to remove from the list returned by Array.asList
  4. java.sql.SQLException: Access denied for user ‘root’@’localhost’ (using password: YES)
  5. How to read and understand the java stack trace? [duplicate]
  6. How to define custom exception class in Java, the easiest way?
  7. How to fix java.net.SocketException: Broken pipe?
  8. In Java, when should I create a checked exception, and when should it be a runtime exception? [duplicate]
  9. Why doesn’t Java allow generic subclasses of Throwable?
  10. How can I write custom Exceptions?
  11. How do you assert that a certain exception is thrown in JUnit tests?
  12. How do I increase the number of displayed lines of a Java stack trace dump?
  13. Handling Java crypto exceptions
  14. JDBC driver throws “ResultSet Closed” exception on empty ResultSet
  15. How to parse number string containing commas into an integer in java?
  16. What is difference between Errors and Exceptions? [duplicate]
  17. java.net.MalformedURLException: no protocol
  18. org.hibernate.MappingException: Unknown entity: annotations.Users
  19. How can I throw a general exception in Java?
  20. PKIX path building failed in Java application
  21. javax.crypto.BadPaddingException
  22. How can I detect when an Exception’s been thrown globally in Java?
  23. Exception without stack trace in Java
  24. String index out of bounds exception java
  25. Why does TreeSet throw a ClassCastException?
  26. Catching an exception that is nested into another exception
  27. Java InputMismatchException
  28. Is it a bad idea to use printStackTrace() for caugt Exceptions?
  29. The local variable might not have been initialized – Detect unchecked exception throw within a method
  30. org.openqa.selenium.UnhandledAlertException: unexpected alert open

Leave a Comment