Questions tagged as 'java'

Tagged questions
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Use Bluetooth Device to connect to the internet

I'm making an application where I connect 2 devices: Device1 that I connect to Bluetooth to Device2 that already has internet via wifi. In Device2, activate the Tethering to share the internet with Device1, but to be able to complete it;...
asked by 22.11.2018 / 00:45
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Parameterize temporary files in Servlet 3.0

I'm doing a servlet to which a document is uploaded. Using the Servlet 3.0 java API, I am indicating the property in web.xml : <multipart-config> <location>C:\temp</location> </multipart-config> But...
asked by 20.11.2018 / 14:34
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HASHTABLE JAVA - ENUMERATOR VARIABLE HANDLING

I have this problem and basically I can not interpret the documentation correctly. I am implementing a hashtable with which I receive a number of boxes_type to respond with medication. ht (medic, cant). The problem is: I can not figure out how t...
asked by 19.11.2018 / 21:55
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WebView Java does not load Bootstrap style

I have made a Web in Java EE and incorporated Bootstrap styles. Here you can see the files I use. I made a Webview a long time ago and everything worked fine showing me what it looks like in the browser, I had to format the comput...
asked by 20.11.2018 / 21:15
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send data from mysql to a faithful jtext netbeans

I have a table with data that absorbs from mysql .. when I give clk to the table I want the data that is missing in the table to be sent to a faithful jtext ..... the table is from cars and I want to send the details and that's a very long field...
asked by 20.11.2018 / 19:28
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Pass a txt to an array in JAVA

I need help. I have the following information in a text file .txt Isabel Garcia,10,10,10,10,10,10,10 Luis Fernando,10,09,09,09,09,09,09 Isabel Flores,10,09,09,09,09,09,09 What would be the code to read the txt that is saved in a certa...
asked by 20.11.2018 / 22:06
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Problem with GUI on NetBeans

I'm here to see if you can enlighten me with this Java and the GUI I'm just learning. I'm trying to make a simple 3-section GUI (header, content and footer). Generate the following code (note, it is not the complete program and I know ther...
asked by 21.11.2018 / 14:11
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How to save a text from an external .txt file in a string variable?

Hello, I am very new to the Java world and I have a small problem, I currently want to save a text from a .txt file in a variable String, but with the little knowledge I have of Java I did something very rudimentary that also does not work well...
asked by 21.11.2018 / 14:37
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I can not start commands in spark-shell with scala

Use cmd of win 10, I call spark-shell, spark is executed and I'm on the command line under scala. Then, when trying to execute any command whatsoever, this appears to me: Exception in thread "main" java.io.FileNotFoundException: C:\Users\histe...
asked by 25.11.2018 / 00:17
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Fail when trying to enter one of the 3 java mysql buttons

I have a small problem with a program that I am developing. In one of the windows to which I arrive, I must choose a level, and it depends on the level I choose, it thunders, showing me an error of index = 0; and size = 0 I do not know what m...
asked by 24.11.2018 / 23:44