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Java.lang.string Cannot Be Cast To Java.util.iterator

Mimsy were the Borogoves - why is "mimsy" an adjective? What is Object in Java Programming and OOPS - Exam... You can use each entry item by iterating the set: Iterator it = authentication.entrySet().iterator(); while (it.hasNext()) { Map.Entry entry = (Map.Entry)it.next(); //current entry in a loop /* * do something for Technological gradient within a solar system? check over here

what makes this problem worse is that it only comes during runtime, ClassCastException doesn't come at compile time which makes it hard to detect specially in large enterprise Java application or If you comment out the rest of this loop (including the line above this comment) it disappears. asked 4 years ago viewed 18474 times active 4 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Related 6[java.lang.String; cannot be cast to java.lang.String0java.lang.String cannot be cast to Difference between equals method and "==" operator... http://stackoverflow.com/questions/19658546/java-lang-string-cannot-be-cast-to-java-util-mapentry

determine the input type of the value of the function parameter map HashMap Doubt All times are in JavaRanch time: GMT-6 in summer, GMT-7 in winter Contact Us | advertise | more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Thank you Riaan Nel Ranch Hand Posts: 160 I like...

Read them too: How to iterate HashMap How to iterate LinkedList Iterator with Generics Example In the above section we discussed about ClassCastException. ThreadLocal in Java. How to compare Arrays in Java - Equals vs deepEqua... What is a Rotary Club Word™?

Find the Emirps! SQL query to copy, duplicate or backup table in My... Inner class and nested Static Class in Java with E... http://stackoverflow.com/questions/8171582/java-lang-string-cannot-be-cast-to-java-util-map Required fields are marked *Comment Name * Email * Website you MUST enable javascript to be able to comment Follow Me on Google+ Join Us On Google Plus Collections Tutorial ArrayList

I'd recommend you create some objects to represent your data. How to fix java.lang.classcastexception cannot be ... String handling Exception handling Multithreading Java I/O Tutorial Recently Added.. now it runs run: UnSorted order is : {2nd=Passion, 1sth=Java, 5th=9, 3rd=aa, 4th=bb} Sorted map {1sth=Java, 2nd=Passion, 3rd=aa, 4th=bb, 5th=9} Thanks thanks a lot, with my Regards Lee Kian Giap )

Ubuntu 16.04 installer cant see SSD drive Color substitution in a BufferedImage more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising hashNext() method of iterator replaced hasMoreElements() method of enumeration, similarly next() replaced nextElement(). Therefore, all progress depends on the unreasonable man." - George Bernard Shaw Maya sekar Ranch Hand Posts: 70 posted 4 years ago Thank you so much. Do you still see java.lang.ClassCastException in Generics world ?

here is the unexpected exception thrown ": java.lang.ClassCastException: java.lang.Long cannot be cast to java.lang.Double" November 5, 2015 at 7:24 AM Manjula said... [Ljava.lang.String; cannot be cast to java.util.Collection August 21, 2016 check my blog Though we can minimize and avoid java.lang.ClassCastException in Java by using Generics and writing type-safe parameterized classes and method, its good to know real cause of ClassCastException and How to solve You don't need to declare the variables all at one place. Difference between Iterator and Enumeration An iterator over a collection.

Browse other questions tagged java map or ask your own question. Also write your own classes and method to take advantage of Generics to provide type-safety as shown in this example of How to write parameterized class. The worst things about Presidential candidates in history Add new comment Your name Email The content of this field is kept private and will not be shown publicly. http://pgexch.com/java-lang-string-cannot/java-lang-string-cannot-be-cast-to-java-util-date.html How to read input from command line in Java using ...

By Alvin Alexander. Are “la malplej juna” and “la plej maljuna” entirely interchangeable? Mimsy were the Borogoves - why is "mimsy" an adjective?

Lets see what is it and why it occurs when we don't use Generics.

some time later Iterator it = list.iterator(); while (it.hasNext()) { // intentionally throw a ClassCastException by trying to cast a String to an // Integer (technically this is casting an Object How to Split String in SQL Server and Sybase How to get current date, month, year and day of we... Because a String cannot be directly cast to an Integer — an Integer is not a type of String — a ClassCastException is thrown. Can Trump undo the UN climate change agreement?

However since we type casted the integer value to String in the while loop, we got ClassCastException. What is a Java IOException? How to find duplicate records in a table on databa... have a peek at these guys I print everything to it just fine, but when I try to read it I get the following error: "java.lang.String cannot be cast to java.util.Map".

What is the point of update independent rendering in a game loop? Join them; it only takes a minute: Sign up java.lang.String cannot be cast to java.util.Map up vote 2 down vote favorite I'm new to Java, but not new to programming, so but through the progam I get the error msg pasted above. If a wondrous item was dynamically created as slimy, can I remove the smell with prestidigitation?

What is Constructor in Java with Example - Constru... more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Can anyone help me figure out what I have done wrong? ConcurrentModificationException while using Iterator import java.util.ArrayList; public class ExceptionDemo { public static void main(String args[]){ ArrayList books = new ArrayList(); books.add("C"); books.add("Java"); books.add("Cobol"); for(String obj : books) { System.out.println(obj); //We are

Java Collection classes like HashMap, ArrayList, Vector or Hashtable which is not using Generics. 2. Set> subSet = subMap.entrySet(); Iterator> subI = subSet.iterator(); while (subI.hasNext()) { Map.Entry subInfo = subI.next(); Map subsubMap = (Map) subInfo.getValue(); // is this actually a Map> as a single Map.Entry.

Java Error : 'javac' is not recognized as an inter... Are “la malplej juna” and “la plej maljuna” entirely interchangeable? January 21, 2013 at 9:18 PM Farooq said... What happens when a wizard tries to cast a cone of cold through a wall of fire?

Iterators differ from enumerations in two ways: 1) Iterators allow the caller to remove elements from the underlying collection during the iteration with well-defined semantics. 2) Method names have been improved.