Posts by Victor • 71 points
9 posts
-
0
votes1
answer386
viewsQ: Open text file in float value list
I need to open some files I have here that are in txt format which is even less common and specific in data processing issues, these files consist of values from 0,000 up to 0,999 and also from…
-
0
votes1
answer351
viewsQ: Compression and Reading of CSV file with large-scale rows x columns via Pandas
I am stuck looking for a precise and intuitive way to read a file of 70.000KB formed by the concatenation of several files being them with varied sizes. Initially possessing several files in the…
-
6
votes2
answers1184
viewsQ: Differences between System.out x System.err x System.in?
I didn’t find any debate on this question here in the community so I decided to create this topic. Follow a well-commented question among beginners in the Java language when it comes to data…
-
0
votes0
answers204
viewsQ: (JAXB) Recover XML file in the input fields of a Jswing form with Unmarshalling
I am new and I started to learn these XML days because of an implementation that should have in my application, I did some tests with Mashall and unmarshall in the main class first (see at the end)…
-
0
votes0
answers756
viewsQ: Select item in Jcombobox and return associated value in Jtextfield in JPA
I try several times in a Swing form to make sure that when selecting the option in Jcombobox the value of the item in the column of the same row appears in Jtextfield. Once I managed to do this…
-
0
votes1
answer175
viewsQ: Illegalargumentexception: illegal value in JPA when recovering Jspinner value
I’m testing an event on a JTable of the kind tableMouseClicked(evt), only that I am having some errors when returning the values in the respective Jtextfield and in a Jspinner that I configured.…
-
-1
votes1
answer261
viewsQ: Separate listings of an object for each object of the type of another class
Good night. My question is in relation to the algorithm of my project, I am trying to make an application where each Customer can place several orders but each order belongs to a different Customer.…
-
0
votes1
answer444
viewsQ: Search using two parameters in JPA
Good night to you all, I am stuck here in a logic, I did the DAO for all the CRUD of my project only that in it will not only have the search for the ID and I am also trying to do some method that…
-
0
votes2
answers725
viewsQ: Solution of exceptions Serviceexception and Failed to execute Goal org.codehaus.mojo:exec-Maven-plugin:1.2.1:exec?
The following error is occurring: Serviceexception and Failed to execute Goal org.codehaus.mojo:exec-Maven-plugin:1.2.1:exec? I have already changed the name of the Provider from…