Bob Taboy

hello! I'm stuck with the GUI, I have a main panel with a border layout. in the south (or page_end) of the JPanel I have several components wich I would like to divide in 2 "zones" right and left. to make this I use gridbaglayout (just to remind this one is inside the borderlayout.south). The right zone is ok, but the left one has several components wich I would like to put inside a jscrollpane so they don't occupy lot of vertical space. the problem is that I just can't make that jscrollpane to keep the components in a smaller area, they just fit their necesities. to aling those components I use again GridBagLayout, wich goes inside the JScrollpane. I have already tried with set the maximumsize, setsize, but none of them work, any sugestion?
** I attached an image so you can see what I mean better

I have been reading and find that it's a little complex to use access from java, and may require more memory because the use of many libraries and platforms, are there any other kind of files to manage information? Similar to access or excel or the common databases used with java?

Hello! I want to manipulate some Microsoft Access files (2007-2010) from my java program to read and write. The problem is that I don't know the libraries or the correct keywords to search because it take me to other examples I don't want. Can someone pass me a link for a tutorial or explain briefly something? I know it uses javax.sql library (I'm not sure) but ignore if all the comands work with Microsoft Access. Thanks for your advices.

Korbel, if you read the previous comments you will find this is the answer. And why read more articles if I already have the answer to my problem?

Hello! I'm doing a program and plan to use object arrays. The question is, will there be ejecution problems if I re-inicialize the array? Given that the amount of spaces can't be changed (incrised or decreased), to rewrite the array complete can give problems? for example:

... Object myArray [][] = { {"Kathy", "Smith", "Snowboarding", new Integer(5), new Boolean(false)}, {"Joe", "Brown", "Pool", new Integer(10), new Boolean(false)}, }; // here I inicialize the array ... // several lines of code ... // after many comands I re-inicialize the array with new data myArray= new Object[][] { {"B", "Doe", "Rowing", new Integer(13), new Boolean(true)}, {"F", "Black", "Knitting", new Integer(20), new Boolean(false)}, };

Using this kind of operantions will give problems on the long run?

here is the method I use to filter the fourth colum containing numbers

public void ordena(){ RowFilter<MyTableModel,Integer> makeRowFilter= new RowFilter< MyTableModel, Integer> (){ public boolean include(Entry< ? extends MyTableModel, ? extends Integer > entry) { try{ Integer ei= (int)entry.getValue(3); //value obtained from the 4th column Integer e2=(int)sp2.getValue(); //values to compare ei Integer e3=(int)sp1.getValue(); if(ei >= e2 && ei <= e3) return true; //if true it will display the column return false; } catch (Exception e){ return false; } } }; sorter.setRowFilter(makeRowFilter); }

=0 thanks I didn't notice that, btw I already find the answer, how can I end up this post?

It's my first time trying JTables and I have lots of questions. I want to have a colum with years and show just the range I desire, the problem is that colum is the fourth one and I don't know how to search in that place. The code I have right now is the next one:

public void ordena(){ RowFilter<MyTableModel,Integer> makeRowFilter= new RowFilter< MyTableModel, Integer> (){ public boolean include(Entry< ? extends MyTableModel, ? extends Integer > entry) { Integer ei = entry.getIdentifier(); if(ei>=2 && ei<=7) return true; return false; } }; sorter.setRowFilter(makeRowFilter); }

can anybody help me?

Thanks to all of you, your guide had been very helpful, but I still have some issues to solve that I haven't considered. Apache POI is made to manage information by row and then access the colums, but I need in several cases to manage information by colum and then by row, is there an efficient way to do that? Because I'm not very convinced for the methods I have seen. Any guide in a webpage you can lend me? I will thank you a lot.

I need to read and write data along many excel documents, to give a better example one excel document per client, and I didn't knew that graphs could just be placed in excel, that's why I asked that.
And as I haven't used any library, can you tell me your experiencies with the libraries? I have read about POI, does it have any problems that I should consider?

I want to manipulate the 2010 excel files (which are the same as 2007), I haven't considered to use formulas pretty well but seems a good idea in the program, that will make it faster. create graphs and be able to show them in the program will be awesome, but not sure if that's possible.

What I really really need is to be able to position at diferent cells, like in a random access file, to use the same kind of search to get to the data (multiplying the register length times the number of register, plus the desired cel). And if there is a method that focus on the las cell I really need it. For example if I had a colum with information and need to write in the next one or read that cell, to be able to access it directly (like on several Java comands "lastIndexOf()"). I plan to access data in a similar way from a random access file, and need excel for the 2d array of informations

Hello! I am new at this webpage and I don't know if its ok to leave this question here. I need to do a program in which the manage of data is essential, my client actually use excel as the way to manage information so I want to keep this. He won't buy access or SQL and using txt files or .dat files will generete too many of them so excel seems to me my best option. The problem y is that I haven't use it from Java, can someone tell me of libraries that can help with my problem? I have read about JExcel and another one but which is better? advantages/disadvantages? And some advices that you can tell me? thanks