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Integer Cannot Be Cast To Comparable


super T>> extends MyListADTThat "? If those answers do not fully address your question, please ask a new question. Join them; it only takes a minute: Sign up Java: Integer obj can't cast to Comparable up vote 3 down vote favorite I'm having problems trying to pass an Integer object Powered by Blogger. check over here

Linked 0 Java initializing a generic array Related 0java.lang.ClassCastException: java.lang.Integer cannot be cast0java.lang.ClassCastException, DeepNodeListImpl cannot be cast0java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to4java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast4java.lang.ClassCastException: cannot be cast to java.lang.Object0java.lang.ClassCastException: Not the answer you're looking for? java share|improve this question edited Jan 2 '12 at 9:29 Jens Schauder 32.9k1383183 asked Jan 2 '12 at 9:27 who must not be named 108119 Post the source for super T>> implements Stack { private final int DEFAULT_CAPACITY = 50; private int top; private T[] elements; @SuppressWarnings("unchecked") public ArrayStack() { this.elements = (T[]) new Comparable[DEFAULT_CAPACITY]; this.top = 0; } } http://stackoverflow.com/questions/2112343/java-integer-obj-cant-cast-to-comparable

Cannot Be Cast To Java.lang.comparable Treeset

Are there still systems around with a /bin/sh binary? 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 When the compiler processes this, a process called erasure is performed: generic type information is 'erased'. Furthermore, all elements in this range must be mutually comparable (that is, e1.compareTo(e2) must not throw a ClassCastException for any elements e1 and e2 in the array).

That's why the toArray method in Collection requires you to pass an array - it reads the actual type of the array using reflection, and if needed, creates another array to As Italian citizens, what legal documents are we supposed to carry when traveling to Ireland? Object() In Java.lang.Object Cannot Be Applied To (java.l Java.lang.ClassCastException: AppletUI Cannot Be Cast To GUI Short Cannot Be Cast To Int, And Int Cannot Be Cast To Short - Trying To Java.lang.classcastexception Ljava.lang.object Cannot Be Cast To 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

look for all places where you have used cast operator in Java and verify that whether that code is type-safe or not. Skyrim: How to stop NPCs from picking up dropped items Safety - Improve braking power in wet conditions Ballpark salary equivalent today of "healthcare benefits" in the US? asked 3 years ago viewed 7610 times active 3 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Get the weekly newsletter! http://stackoverflow.com/questions/27591061/ljava-lang-object-cannot-be-cast-to-ljava-lang-integer For instance, a very simple stack implementation (no bounds checking): public class Stack { T[] array; int index; public Stack(int size) { array = (T[])new Object[size]; index = 0; } public

What is a Rotary Club Word™? Create Generic Array Java The declaration should be public class MyArrayList stack = new Stack(10); stack.push("text"); String popped = stack.pop();

Ljava Lang Object Cannot Be Cast To Ljava Lang Comparable

You can cast any non-primitive array to Object[]. http://stackoverflow.com/questions/25835983/java-lang-object-cannot-be-cast-to-java-lang-comparable Hi genius , how to resolve this ,Causedby:java.lang.ClassCastException:java.lang.Integercannotbecasttojava.util.Collection April 15, 2015 at 10:58 PM Anonymous said... Cannot Be Cast To Java.lang.comparable Treeset Join them; it only takes a minute: Sign up java.lang.Object; cannot be cast to [java.lang.comparable] up vote -2 down vote favorite I'm stuck at this java.lang.ClassException. Object Cannot Be Cast To Comparable Example for a commutative subring of a non-commutative ring On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack?

share|improve this answer answered Jan 21 '10 at 20:11 Powerlord 60.7k1193149 1 "I took a look at some of my classmates' source codes" I'm thinking that this class is his check my blog How to Count Occurrences of a Character in String ... Why getter and setter are better than public field... ► November ( 8 ) ► October ( 13 ) ► September ( 8 ) ► August ( 9 ) ► July Type erasure also turns every occurrence of T into Comparable so why not use Comparable[]? Implement Comparable

Integer number = (Integer) stringObject; java.lang.classcastexception java.lang.string cannot be cast to java.util.date :This error will come when you cast String to Date in Java, since both are not related to each Here is the relevent portion of MyListADT: public abstract class MyListADT implements Cloneable { protected int length; protected int maxSize; protected T[] list; public MyListADT(int size) { maxSize = posted 6 years ago Istvan Kovacs wrote:The problem is that you create an Object[], which cannot be cast to T[]. this content Not the answer you're looking for?

Browse other questions tagged java sorting exception classcastexception comparable or ask your own question. Treeset Comparator I feel pretty close on this but the project is a train wreck all the same. In fact ClassCastException in Java is one of most common exception in Java along with java.lang.OutOfMemoryError and ClassNotFoundException in Java before Generics was introduced in Java 5 to avoid frequent instances

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The object's actual runtime class is Object[], which is not a subtype of E[] for whatever E is (unless E is Object). Java Error : 'javac' is not recognized as an inter... River Crossing Puzzle In Revelation 19:16, of which kings is Jesus king? Java Comparable Why do languages require parenthesis around expressions when used with "if" and "while"?

It can be best explained with an example. Generics are designed to write type-safe code and provides compile time checks which tends to violate type-safety. The class declaration reads: public class MyArrayList extends MyListADT So I am not extending (or implementing) Comparable with my collection class, I am just telling it to accept any http://bestimageweb.com/cannot-be/integer-cannot-be-cast.php Especially the related fields and its constructor, since that's where the exception is coming from.

A carefully designed program will never see ClassCastException. A guy scammed me, but he gave me a bank account number & routing number. share|improve this answer edited Oct 31 '13 at 21:50 answered Oct 31 '13 at 21:34 Steve Park 649713 I'm sorry everyone. Space of real sequences with finitely many nonzero elements is a Banach space?

asked 1 year ago viewed 5335 times active 9 months ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Linked 0 Initialize generic array 337 What is the point of This is for a homework assignment, so any type of brief help is welcome. /* */ public class Item { public static String name; public static double price; public void setName(String SCJP 1.4 - SCJP 6 - SCWCD 5 - OCEEJBD 6 - OCEJPAD 6 How To Ask Questions How To Answer Questions Istvan Kovacs Ranch Hand Posts: 100 posted 6 How to add, subtract days, months, years, hours fr...