Questions tagged as 'java'

Tagged questions
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How to keep SDK and Java JRE installed and updated in a windows development environment

How to maintain a secure, clean and updated java (SDK and JRE) installation of Java on a computer used for software development? I'm having problems maintaining my development environment, because I have Eclipse IDE and Android Studio install...
asked by 29.04.2015 / 01:24
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How to display received variables in a JFrame?

I am working with socket server, it receives information from an Android application, there are three information: table, request and quantity. However, I can not display this information in JFrame , I have no idea how to do this, I trie...
asked by 30.04.2015 / 17:05
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Problem with selection in MySql

I'm starting this business and having difficulty selecting more than one table. My selection command was as follows: Table 01: select * from veiculo; |id_veiculo|modelo|cor|placa|chassi|renavam|combustivel|ano|hp|id_proprietario|id_...
asked by 14.04.2015 / 00:56
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How to see memory consumed by the web application?

I have a web application with Spring running, I would like to know how I can see the memory consumed by it.     
asked by 13.04.2015 / 21:08
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Jackson - Converting Objects with Circular Dependency

Given the classes below, we need to solve the problem of infinite recursion (cyclic dependency), and for this we use @JsonIdentityInfo, from Jackson 2 +: @JsonIdentityInfo(scope=Parent.class, generator=ObjectIdGenerators.PropertyGenerator.clas...
asked by 15.04.2015 / 22:05
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Collect data from a JTable and send it to a List

In my Java application, I have a sales screen where the products that are selected go to JTable . At the end of the sale, I need to collect the JTable data and deliver it to the printing method, which is in another class. I just can...
asked by 17.04.2015 / 19:14
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List coming with null value

Well, it's the following, I have 3 methods that are called in init() of my Bean, only one works and the other 2 comes as null , already debuguei and in my ProductJPADAO the data is correct, but when you drop the data in the Lists,...
asked by 24.04.2015 / 04:31
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List files from internal memory in the ListView

I want to create an app that when clicking on the "Lists" option, create a list using ListView based on the files found in a particular folder (path)     
asked by 29.04.2015 / 00:03
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Error importing maven project into Eclipse: In the marketplace entries found to handle

I'm new to JavaWeb programming and when installing eclipse and importing my project created by Maven, please acknowledge the error below:    In the marketplace entries found to handle maven-antrun-plugin: 1.8: run in Eclipse. Please see Help...
asked by 15.07.2015 / 02:42
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Linked lists in Java

Assuming I have a linked list of Students, where you must register name and note, however this same student may contain more than one note. In my logic, it only registers a student with a single note, as you can see in the code below: Class...
asked by 11.04.2015 / 22:08