java.lang.NullPointerException .. Why and How to fix it? - 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:

Tim Cooke
Campbell Ritchie
paul wheaton
Ron McLeod
Devaka Cooray

Sheriffs:

Jeanne Boyarsky
Liutauras Vilda
Paul Clapham

Saloon Keepers:

Tim Holloway
Carey Brown
Piet Souris

Bartenders:

Other threads similar to java.lang.NullPointerException .. Why and How to fix it?

Beginning Java

String[][] can't be converted to int [] .. How to fix it???

4 replies

Beginning Java

Creating an array where duplicates are not allowed

24 replies

Beginning Java

Help with loop and arraylist

7 replies

Beginning Java

pyramid of numbers

214 replies [ 1, 2, 3, 4, 5, 6 ] 1 4

Beginning Java

Regular expression

3 replies

Java in General

How to initialize an Array in this occasion?

2 replies

Beginning Java

Decrypting RC4

2 replies

Java in General

Sorting code in java

3 replies

Java in General

My array is printing x averages for each number instead of total average and I cannot figure it out

3 replies

Beginning Java

How to find reverse of a String?

6 replies

Beginning Java

Search Element in array Problem

7 replies

Beginning Java

null pointer exception in Game Of Life

23 replies

Beginning Java

help with display routine

105 replies [ 1, 2, 3 ]

Beginning Java

sorting last name

12 replies

Java in General

ArrayIndex OutOfBoundsException?

1 reply

Beginning Java

help on input character into screen

3 replies

Beginning Java

Run more than one code?

8 replies

Beginning Java

How to repeat code until user wants to quit?

1 reply

Beginning Java

MinMax Sum of Array

22 replies 1

Beginning Java

Homework for school

22 replies

Java in General

Unable to compile the Generics program

4 replies

Java in General

Gauss Elimination HELP! :)

8 replies

Beginning Java

Double Transposition

34 replies

Beginning Java

how to search number from tuple tree?

2 replies

Beginning Java

Choosing random numbers of elements from an array and calculating their sum

38 replies 1

Beginning Java

Bit Manipulation help needed

10 replies

Beginning Java

Using Nested For Loops To Make Triangle

9 replies

Java in General

How can I clean up my code/make it more efficient?

11 replies

Beginning Java

How Do I Sort A Random Java Array?

3 replies

Beginning Java

trouble inhasNext

8 replies

Beginning Java

Loops and Input

31 replies

Beginning Java

Radix Sort

8 replies

Beginning Java

Pyramid of Numbers

1 reply

Java in General

diamond pattern without parse.int (Someone help me T.T) :cry:

4 replies

Java in General

Sorting elements in an array based off user input responses.

27 replies 1

Beginning Java

Creating a method that retrieves unique integers followed by a whitespace in a array

18 replies

Java in General

Need Help for an Array.

9 replies

Beginning Java

How to read Integer and then String from java

11 replies

Beginning Java

need a little help

10 replies

Beginning Java

Load Main class error!!! trying to sort the names inputted in alphabetical order...please help!

1 reply

Java in General

hamming code(array index out of bounds)

11 replies

Beginning Java

having problem getting the spaces right.

7 replies

Beginning Java

Could not find symbol class.

2 replies

Beginning Java

so i am stuck here trying to create a historgram and i did this a while ago but different

3 replies

Beginning Java

Report employee time clock cannot find corresponding dates in and out

9 replies

Beginning Java

Trouble sorting array of Strings from user input.

33 replies

Beginning Java

Java if-else

3 replies

Beginning Java

Looping Java with Menu

3 replies

Beginning Java

Assigning a Class with Multiple Parameters

9 replies