Posts by Igor Contini • 663 points
19 posts
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viewsQ: What is neural network in programming?
I have been doing a lot of research lately on neural networks in programming and there are few references to neural networks in programming in Brazil. In addition, there are few examples of neural…
terminologyasked Igor Contini 663 -
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answer12115
viewsQ: What is referential integrity?
I have searched several sites and so far I could not understand very well what is referential integrity. So I decided to ask here. When to use referential integrity?
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answer7625
viewsQ: Difference between Triggers and Stored Procedures
What are the differences between Triggers and Stored Procedures?
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answers2119
viewsQ: What is it, Trigger?
I was looking about triggers on this site, but found no question about triggers and then: What are Triggers? When to use a Trigger? How to use a Trigger? What are the uses and applicability of…
databaseasked Igor Contini 663 -
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answer11435
viewsA: What is java.util.Concurrentmodificationexception?
I managed to resolve this exception by erasing the entire loop for and Filme i = it.next();. private void removeFilmeNaLista() { listaFilmes.remove(filme); refazTabela(); }…
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answer11435
viewsQ: What is java.util.Concurrentmodificationexception?
What causes this exception? How to prevent this exception? How to correct it? Example: I have an Arraylist where I keep several films in a table (Jtable) where I remove the films so as not to rent…
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answers156
viewsQ: java.lang.nullException error
I am developing software for a video rental company with Pattern MVC (Model-view-controller) design with the Java Persistent Api Framework and the XML (Generic Markup Extensible Language). My…
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answer198
viewsQ: How to put title in Jdesktoppane?
I am developing software for a video rental company with Pattern MVC (Model-view-controller) design with the Java Persistent Api Framework and XML language. My question is this: How do you put and…
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answers2638
viewsQ: How to call a method into an If and Else?
I am developing software for a video rental company with Pattern MVC (Model-view-controller) design and the problem of not calling the save() method and the change() method is occurring inside If…
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answer330
viewsQ: Error: You have an error in your SQL syntax
I am developing a software for a video rental with Pattern MVC (Model-view-controller) design and the problem of not changing people’s data is occurring. When I change the person’s data displays the…
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answer170
viewsQ: Sqlupdate does not change data in the database
Note: Several people could not solve this question and marked my question as erroneously duplicated because of an answer in a similar question but the answer does not help me at all. I am developing…
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answer94
viewsQ: My application does not change database data
I’m developing a software for a video rental company with MVC. There are two problems: not changing people’s attributes and displaying the following error: java.sql.Sqlexception: Column 'code' not…
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answers586
viewsQ: Application does not save data and only saves code
I’m developing software for a video rental company with Pattern MVC design (Model-view-controller) and the problem of not saving people is occurring. It only saves people’s code and I don’t even…
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answers10606
viewsQ: Convert object to String?
What is the best way to convert an object to a type variable int? Or there is no such conversion? Example: if (teste == JOptionPane.OK_OPTION) { int linha = tblPessoa.getSelectedRow(); // Aqui o…
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answers752
viewsQ: Comparison between objects through loop, If and Else?
I’m beginner in java and I’m having doubts in comparing objects by means of loop. I am developing software for a video rental company with Pattern MVC (Model-view-controller) design and I want to…
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answers8022
viewsQ: Convert String to Date
I’m a beginner in java and I’m having doubts about converting String to Date. I already spent hours searching the internet to see if I could find a solution and I came across very few solutions but…
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answer2012
viewsQ: How to exchange point for comma in java and Bigdecimal type?
I’m a beginner in java and I’m having doubts about the type BigDecimal, Because he accepts points, not commas. I am developing a software for video rental and want to save the value of my category…
javaasked Igor Contini 663 -
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answer748
viewsQ: Are there other GUI libraries besides awt, swing and javafx?
I wanted details and what are these libraries for to help me develop my video rental software.
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viewsQ: Conversion from String to Bigdecimal is giving error and method not saved
I’m making a system for video rental and on my category screen a field called value to save the value of my category. I was able to convert String to Bigdecimal using the following methods:…