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I Cannot Be Cast To Java.lang.string

You can also prevent ClassCastException in Java by using Generics. This is because request.getParameter(key) returns a String which is actually the first element of the resulting string array. Why "silver-tongued" for someone who is convincing? Difference between Primary key vs Foreign key in t... http://tcsmacs.net/i-cannot/i-cannot-be-cast-to-ljava-lang-object.php

Something vaguely like: class CourseItem { private String courseName; private String courseId; // Or int or whatever CourseItem(String courseName,String courseId) { this.courseName = courseName; this.courseId = courseId; } public String getCourseName() Zener diodes in glass axial package - not inherently shielded from photoelectric effect? Henry Wong author Marshal Posts: 21902 87 I like... Java Interview Questions6.

That would be the internal name of a String array. –Jörn Horstmann Feb 1 '12 at 15:52 Oh yes, it started with an open brace[. US Election results 2016 : what went wrong with prediction models Can a president win the electoral college and lose the popular vote Possible repercussions from assault between coworkers outside the share|improve this answer answered May 14 '14 at 10:18 Tim B 28.8k94790 how can I get courseId? –user3627624 May 14 '14 at 10:25 add a comment| up vote 0 What do I do?

JVM Troubleshooting Guide3. posted 2 years ago Babu Singh wrote:resultset returns the rows which all is string. What is this c. 1948 private plane with a sliding canopy? java.lang.classcastexception java.util.arraylist cannot be cast to java.util.mapjava.lang.classcastexception ljava.lang.object cannot be cast to ljava.lang.comparablejava.lang.classcastexception ljava.lang.object cannot be cast to ljava.lang.integerjava.lang.classcastexception ljava.lang.object cannot be cast to java.util.listjava.util.arraylist cannot be cast to java.lang.comparable

ThreadLocal in Java. What is the most someone can lose the popular vote by but still win the electoral college? u save my days..🙂 Reply 2010 in review « Stephen on Software aka SOS Says: January 3, 2011 at 9:38 am […] java.lang.ClassCastException: [Ljava.lang.String; cannot be cast to java.lang.String When using http://stackoverflow.com/questions/9098755/java-lang-string-cannot-be-cast-to-java-lang-string If you use the word List as you have then you implicitly mean java.util.List –Steve C Sep 22 at 23:19 | show 1 more comment up vote 0 down vote The

The following code is correct and does not throw a ClassCastException: public static void main(String[] args) { Parent p = new Parent(); Child ch = new Child(); p = ch; What is Type Casting in Java - Casting one Class ... Are “la malplej juna” and “la plej maljuna” entirely interchangeable? Java Error : 'javac' is not recognized as an inter...

I thought this exception has been forgotten long back. https://coderanch.com/t/633683/java/java-lang-ClassCastException-java-lang If a wondrous item was dynamically created as slimy, can I remove the smell with prestidigitation? Share to Twitter Share to Facebook Labels: core java , error and exception , programming Location: United States 5 comments : Anonymous said... Why are wavelengths shorter than visible light neglected by new telescopes?

asked 4 years ago viewed 35985 times active 3 years ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Get the weekly newsletter! How to find middle element of LinkedList in Java i... Join them; it only takes a minute: Sign up java.lang.String cannot be cast to [Ljava.lang.String; up vote 1 down vote favorite I have the following and I take the error java.lang.String Why were pre-election polls and forecast models so wrong about Donald Trump?

This leads to ClassCastException if object is not of type on which you are casting it. 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 JPA Mini Book2. this contact form His main interests include distributed systems, storage systems, file systems, and operating systems.

Does the electoral vote count ever get reallocated between states? Will boring a cylinder affect its longevity thereafter? Generics are designed to write type-safe code and provides compile time checks which tends to violate type-safety.

By using Generics in Collection classes and other places you can safely minimize java.lang.ClassCastException in Java.

Why getter and setter are better than public field... ► November ( 8 ) ► October ( 13 ) ► September ( 8 ) ► August ( 9 ) ► July Java Collection classes like HashMap, ArrayList, Vector or Hashtable which is not using Generics. 2. JUnit Tutorial for Unit Testing4. How can an advanced (circa 7000 AD) spacefaring human civilization be prevented from entering its own solar system?

This includes Random Password Generator and Base64 Encoder. Sorry for missing that. Can a text in Latin be understood by an educated Italian who never had any formal teaching of that language? change from: String[] test = (String[]) dataList.get(i); To: String test = (String) dataList.get(i); This will work if your List will not contain array of any type.

Polyglot Anagrams Cops' Thread Are “la malplej juna” and “la plej maljuna” entirely interchangeable? Constructor Chaining in Java - Calling one constru... Difference between Class and Object in Java and OO... How to read input from command line in Java using ...

How to create polygon shapefile from a list of coordinates using python gdal/ogr? 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 How to create thread safe Singleton in Java - Java... For example: List list = new ArrayList<>(); list.add("foo"); String[] values = (String[])list.get(0); -> throws the exception For me you get this error because query.getResultList() returns a List or List instead of

When you loop through the characters, your if statement should compare each of the tiles with the passed in tile. Since due to polymorphism in Java an Object instance can hold any type of Object but you can only cast between same type. Will boring a cylinder affect its longevity thereafter? Email address: Join Us With 1,240,600 monthly unique visitors and over 500 authors we are placed among the top Java related sites around.

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 you actually get arrays out of result sets? share|improve this answer edited Feb 1 '12 at 16:16 answered Feb 1 '12 at 16:02 Roshnal 607826 It prints [Ljava.lang.String;@25a091[Ljava.lang.String;@50a11a –jobinbasani Feb 1 '12 at 16:07 @whoopy_whale: JComboBox#getSelectedItem returns an Object (in this case apparently a String), not an array (of any kind).