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I Cannot Be Cast To Ljava.lang.integer

Then finally this line: return x; Boxes up the value of x into a Double and returns it as the result of the method. How much time would it take for a planet scale Miller-Urey experiment to generate intelligent life Can a president win the electoral college and lose the popular vote River Crossing Puzzle Therefore the ArrayList stores generic s. share|improve this answer answered Apr 16 '15 at 6:27 Radiodef 23.7k84077 I created the program but for addEdgeForIndexing method I actually had reference from somewhere else. Source

Assume this code was valid: Object[] array = new Integer[10]; then this would also be valid array[0] = new Car("Mercedes"); But the latter should not be possible. In this case, the subclass, MinMaxStack, extends Stack with a specific type for E, therefore, it "sees" elements as a specific type of array, which it is not. Zener diodes in glass axial package - not inherently shielded from photoelectric effect? Would we find alien music meaningful? http://stackoverflow.com/questions/15123450/classcastexception-java-lang-object-cannot-be-cast-to-java-lang-integer

I ll try to fix that then thank you. –fuschia Apr 16 '15 at 6:30 1 Double-check the logic, I guess. You cant do it. Browse other questions tagged java exception classcastexception or ask your own question.

However, your Stack class does not have such a method. I ll try to fix that. Should I allow my child to make an alternate meal if they do not like anything served at mealtime? This cast fails.

How do I deal with my current employer not respecting my decision to leave? is there any alternate way to do this. Join them; it only takes a minute: Sign up Ljava.lang.Object; cannot be cast to [Ljava.lang.Integer; up vote 0 down vote favorite The map function simply iterates through the integer array and http://stackoverflow.com/questions/1115230/casting-object-array-to-integer-array-error If you were allowed to cast an Object[] to Integer[], then the JVM could never be sure of the actual type of the objects in the array, since old references to

share|improve this answer edited Feb 23 '13 at 5:06 answered Feb 23 '13 at 2:37 Jayamohan 8,12111633 add a comment| up vote 1 down vote A slight change in your code Ubuntu 16.04 installer cant see SSD drive Complement of CFL is Recursive Would we find alien music meaningful? What is this c. 1948 private plane with a sliding canopy? Here are couple of more examples, which is self explanatory.

class Stack { protected E[] elements = (E[])new Object[1]; } class IntStack extends Stack { void push(Integer i) { // subtly accessing elements as Integer[] which it's not elements[0] = i; http://stackoverflow.com/questions/29666610/classcastexception-cant-be-cast-to-java-lang-integer How to find duplicate records in a table on databa... This leads to ClassCastException if object is not of type on which you are casting it. How to comment uncomment single line and block of ...

With Java 7 and above you can use the diamond operator <> like Stack st = new Stack<>(); st.push(ran.nextInt(100)); With earlier versions you specify the generic type like Stack st = Union and Intersection of two Set in Java - Google... How to convert milliseconds to Date in Java - tuto... 3 Example to print array values in Java - toString... Powered by Blogger.

Many of advanced Java IDE like Eclipse and Netbeans will give you hyperlink to navigate till culprit line number in Java file. However, you can cast a subtype array to a supertype array (e.g. Inversion of Control and Dependency Injection desi... have a peek here Same goes for list for example List myList = new ArrayList(); It will give you a compiler error.

That makes sense. How to prove that authentication system works, and that customer uses the wrong password? But i actually need it to be int so that the performance is better because i need to loop through a lot of items there. –fuschia Apr 16 '15 at 6:48

Why did Borden do that to his wife in The Prestige?

Browse other questions tagged java classcastexception or ask your own question. Integer[] integerArray = new Integer[integerList.size()]; integerList.toArray(integerArray); return integerArray; } share|improve this answer answered Jul 26 '11 at 11:33 Michael 1,19311326 1 I like this one. –BJ Peter DeLaCruz Jul 27 What is Referential Integrity in Database or SQL -... How to parse or convert String to long in Java - 4...

Join them; it only takes a minute: Sign up java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Double up vote 1 down vote favorite I'm Facing Issues at the Run time to compile 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 What important is the ClassCastException problem is solved! Why can issuing the same command create more output in tty than in pts/gnome-terminal?

Any ideas? In this Java tutorial we will see Why java.lang.ClassCastException comes and how to resolve ClassCastException in Java. How often should I replace windscreen wiper blades? dynamic_cast1857Cast int to enum in C#1412Do I cast the result of malloc?263Safely casting long to int in Java166Cast Double to Integer in Java16094Why is it faster to process a sorted array

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