class NullPointerException? Can someone please help me? - Similar Threads

Register / Login

programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums

this forum made possible by our volunteer staff, including ...

Marshals:

Campbell Ritchie
Devaka Cooray
Ron McLeod
Paul Clapham
Liutauras Vilda

Sheriffs:

paul wheaton
Jeanne Boyarsky
Tim Cooke

Saloon Keepers:

Stephan van Hulst
Tim Holloway
Tim Moores
Mikalai Zaikin
Carey Brown

Bartenders:

Other threads similar to class NullPointerException? Can someone please help me?

Beginning Java

Help with reading from file and storing Strings into objects of a class

4 replies

Beginning Java

Are there structs in Java? Are they even called structs?

9 replies

Beginning Java

Generate employee id trouble

18 replies

Beginning Java

Homework for school

22 replies

Beginning Java

Am I missing a constructor?

15 replies

Beginning Java

How to access data out of an array list

7 replies

Beginning Java

Infamous getAge() method help

2 replies

Beginning Java

While Loop with Sentinel issues

19 replies

I/O and Streams

Write objects to a File

6 replies

Beginning Java

accepting user input into into an array

6 replies

Beginning Java

Tokenizing after reading from a file

10 replies

Beginning Java

Extracting portions of a string

5 replies

Java in General

Help with creating a game.

1 reply

Beginning Java

Help with my game.

11 replies

Beginning Java

PLEASE HELP

2 replies

Beginning Java

Validation problem please help??

9 replies

Spring

Spring/AngularJS- receiving null data on server

3 replies

Beginning Java

super Constructor

1 reply

JSP

Unable to compile class for JSP

2 replies

Beginning Java

Save variables from a Randomly choosen line in a input file?

5 replies

Java in General

Question regarding POJOs

6 replies

Java in General

OOP and user validation?

6 replies

Java in General

Need help with validation ?

1 reply

Beginning Java

Bubble sorts and Loops

1 reply

Beginning Java

need help with scanner function being called for every item in array

11 replies

JDBC and Relational Databases

Connecting netbeans with sql database

2 replies

Object Relational Mapping

Search using Hibernate criteria querry

4 replies

Struts

saving & retreiving image using struts1

4 replies

Beginning Java

getText into an Array

3 replies

Beginning Java

code explaination

6 replies

Java in General

while loop

9 replies

Beginning Java

struct in java

1 reply

Beginning Java

struct in java

11 replies

Beginning Java

Creating Objects in a loop

15 replies

Beginning Java

Polymorphism questions

15 replies 1 1

Beginning Java

Help with toString message

32 replies

Beginning Java

Project Help

3 replies

Beginning Java

New to Java

3 replies

Oracle/OAS

Need Expert Advice

5 replies

Beginning Java

Add object to array

2 replies

Beginning Java

implement a counter to count the number of employee records

3 replies

Beginning Java

Employee Database

35 replies 1

JSP

Parsing a string array

1 reply

Beginning Java

Problems w/ a HashMap

9 replies

Java in General

Pesudo coding

3 replies

Beginning Java

Student and Main Class project

6 replies

Beginning Java

problems with math methods

2 replies

Beginning Java

Reading A File

2 replies

Beginning Java

Java help.

7 replies

EJB and other Jakarta/Java EE Technologies

Could not resolve a persistence unit corresponding to the persistence-context-ref-name

9 replies