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You need to use your debugger to step through the code in that method to find out which reference is null. It is not something that anyone here can do for you.
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Message Closed
modified 25-May-20 13:01pm.
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But then he wouldn't be able to push his spam link to his article writing service. 
NB: The person you're replying to isn't the OP.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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We have been given a project for my ComSci class and I've done what i think is half, but got feedback today and it was devastating. I dont know what to do. The final hand in is on the 1st of June. Is there anyone willing to maybe help me write the code? The most complex coding knowledge needed is 2D arrays. I would really appreciate it
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Sorry, this site does not provide code to order. For a start it does not help you to hand in work written by someone else. If you cannot understand your assignment then you need to go over your study and course notes a few more times. There is also lots of useful information and sample code at The Java™ Tutorials[^]
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Hi, first time posting so hopefully doing it correctly. I have used a form builder to build my forms but have run into a couple of issues with functionality. In the code/calculation below I need to be able to return the answer 0 if the answer is less than 0. I've searched loads to no avail so any help would be much appreciated. T.I.A.
$('form#Commission #Commission_On').formCalc(" Nett_Earnings -Actual_Takings >0==0",{ currency_format:true, mirror:'sfm_Commission_On_parsed'});
modified 17-May-20 10:15am.
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What language is that, it does not look much like Java? However assuming it is supposed to convert that string into an actual sum it does not look valid. In the expression Nett_Earnings -Actual_Takings >0==0, what is >0==0 supposed to mean?
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Thanks for answering, I just assumed it was Java as all the scripts are. >0==0 is just one of the ways I was trying to make it work from their info before they told me the form couldn't do the calculation.
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What is this code and where did you get it from? As I said it does not look anything like Java.
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Thanks for answering. The programme is called simfatic form maker.
This was their reply to my query
"Simfatic Forms calculation field can't handle multiple levels of variables. In this case, the user enters a variable that intern is a variable in the next step.
This form has to be hand coded with the help of a developer"
Here is the actual form I am trying to make work https://www.salonlogic.co.uk/forms/Commission/Commission.php[^]
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Sorry, but this has nothing to do with Java programming. You need to talk to the people who created this package for information.
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I have also tried it this way
$('form#Commission #Commission_On').formCalc(" Nett_Earnings -Actual_Takings >0?0",{ currency_format:true, mirror:'sfm_Commission_On_parsed'}); however that then means no output to the box at all.
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That is not Java; that is JavaScript.
Despite the similar names, they are two completely different languages.
There is a specific forum for JavaScript questions:
JavaScript Discussion Boards[^]
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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Thanks for replying, I will ask in the correct place. 
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hi guys, I was wondering if someone could help me write a search function that looks for a string in a hashtable. iv been struggling with this part of my assignment. iv done all the inserts parts and hash function itself.
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You need to explain the problem in more detail. What is wrong with a simple loop that compares the search string with each item in a list?
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hi Richard,
thank you for replying. So the hash table implementation stores simple String data items, so we can only track if an item is in the data structure or not. The find function, determines if the string is in the data the hash table or not. The program loads the test dataset into the data structure, then performs find operations on all the test data items, followed by find operations on a disjoint set of unseen data items.
Iv been able to code the hash component, its just the search part that I'm not too sure of.
this is my hash function
public int hash ( String s )
{
int sum = 0;
for(int=0, i<s.length(); i++)
{sum +=((int)string.charAt(i))%size;}
return sum %size;
}
my find function would resembles something along these lines.
boolean find ( String s )
{
boolean found = false;
int value = hashFunction(s, size);
return found;
}
modified 17-May-20 5:15am.
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As I suggested before, you just need a loop to compare your search value with all the ones already stored. If they are in an array or list then it is just a simple compare of each value. If they are in a database then it is a SQL SELECT statement.
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Thank you Richard, ill try that and see. since the size of the list is already known, im thinking of using a for loop. ill let you know how it goes.
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That is the simple way and should work well for small lists. But there are plenty of Java classes that can manage lists and provide most of the functions that you would need. Check the documentation for things like List, Arrays etc.
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Hi, I'm creating a custom IDE vased on the Netbeans platform. When I build my project, two launchers are created in the build\launcher\bin folder for Windows. I've to apply branding on them. Not on the custom IDE window, but on these two <application name>.exe and <application name>64.exe files. At least file properties like product version, file version, product name. I try to play with the branding\core\core.jar\org\netbeans\core\startup\Bundle.properties, but it affects only on the IDE window.
Is the a way to define these file properties?
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Answer: there is no way to do it with Netbeans. 3-rd party SW can be used. https://netbeans.apache.org/wiki/DevFaqExecutableIcon.asciidoc
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كود جافا جاهز لاشارة المرور على اربع تقطعات
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