Questions tagged as 'java'

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Oracle JDBC for Java 9

I want to connect Java 9 with an Oracle Database 11g, what JDBC should I download and where should I save the downloaded driver? In previous versions of Java I kept it in the ext folder of the SDK and everything worked perfectly, now, in Java ve...
asked by 10.06.2018 / 06:25
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fill cells of a jtable in java

I need help, I want to simulate a Turing machine when I want to, to fill the cells I use a for but the problem is that it fills them in a staircase and they do not complete this is my code: while(fin==false){ if(contador >...
asked by 10.06.2018 / 01:41
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Save image from a jLabel to a PC using a JFileChooser

I have a development in JAVA that stores images in a database, and you can view them again, I need your help, because with a button I want the image that is selected from the table to be saved in the PC. When a row of the table is selected, t...
asked by 10.06.2018 / 05:59
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How to get data from a servlet that returns a json in java in a function

is my first question and I urgently need to respond. The case is that they help me create a function that returns data from this servlet that happened to me. SERVLET LIBRARY srvconsultasbiblio is the servlet that has 3 parameters: getl...
asked by 10.06.2018 / 03:41
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Filling of memory by input / output messages webservices

I have a java web application (version 1.6) that makes numerous calls to external services to obtain / exchange information. Calls are made through libraries generated from a wsdl (with wsimport). The problem presented by the application is t...
asked by 08.06.2018 / 16:29
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How to call data from a table to a textfield

I want to send customer data to show them when making a purchase, you must show the customer's name and rfc, my code if it captures and shows, but at the time of showing it only shows the last rfc entered, so the rfc do not match with each custo...
asked by 09.06.2018 / 17:47
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save data to an arraylist of a resultset

I hope you can help me I am trying to make me return a list from the database through a resultset but I can not get it I hope you can help me thank you public ArrayList<BeanNivelLlenado> consultarNivel(){ ArrayList<BeanNivelLl...
asked by 09.06.2018 / 12:18
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discount value in different records

Buenos Dias please, if you can guide me. I have a table called pago where the client is and another detalle where are the payments that the client must make. I would like to know if the customer has in the table detalle 4...
asked by 09.06.2018 / 10:26
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modularity program without modifying the already written

good day I left a program to finish but I can not understand it tell me that you can not remove anything that has already been put and is modularity can someone help me? // Complete the following program to work correctly. public class U5O...
asked by 09.06.2018 / 17:00
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How can I print a JTextArea and have the text fit the print sheet?

public boolean imprimirTxtArea(boolean flag) { if (flag == true) { String Cabeza = "Titulo"; String Pie = "pagina 1"; try { //Mensaje de encabezado MessageFo...
asked by 07.06.2018 / 19:50