Java, How do I get current index/key in “for each” loop [duplicate]

by

You can’t, you either need to keep the index separately:

int index = 0;
for(Element song : question) {
    System.out.println("Current index is: " + (index++));
}

or use a normal for loop:

for(int i = 0; i < question.length; i++) {
    System.out.println("Current index is: " + i);
}

The reason is you can use the condensed for syntax to loop over any Iterable, and it’s not guaranteed that the values actually have an “index”

More Related Contents:

  1. How do i get an object from another class in java
  2. Java number sign and asterisk [closed]
  3. How to initialize an array in Java?
  4. Running jmap getting Unable to open socket file
  5. How to get the first non-null value in Java?
  6. Retrieving a random item from ArrayList [duplicate]
  7. How to copy a java.util.List into another java.util.List
  8. CSV parsing in Java – working example..? [closed]
  9. Printing Even and Odd using two Threads in Java
  10. String to LocalDate
  11. Writing Custom Kafka Serializer
  12. “Content is not allowed in prolog” when parsing perfectly valid XML on GAE
  13. Deep copy of an object array
  14. JPA Criteria builder IN clause query
  15. Is there a good way to have a Map get and put ignoring case? [duplicate]
  16. Antlr 4.5 parser error during runtime
  17. How to simulate a DB for testing (Java)?
  18. Threads in Java
  19. Reading Windows file summary properties (title, subject, author) in Java
  20. sorting integers in order lowest to highest java
  21. How to select the auto suggestion from the dynamic dropdown using Selenium and Java
  22. How can elements be added to a wildcard generic collection?
  23. Set capability on already running selenium webdriver
  24. Why do we have to call super in Android sometimes?
  25. Get button coordinates and detect if finger is over them – Android
  26. How to sample microphone on Android without recording to get live amplitude/level?
  27. Hibernate Error: a different object with the same identifier value was already associated with the session
  28. Finding all classes implementing a specific interface [duplicate]
  29. Perform operation on n random distinct elements from Collection using Streams API
  30. How to convert hex string to float in Java?

Leave a Comment