Questions tagged as 'java'

Tagged questions
0
answers

java.sql.SQLException: ORA-00936: missing expression TALEND

I'm getting the error java.sql.SQLException: ORA-00936: missing expression in talend in Talend using the following query in a tOracle_input: SELECT /*+ ALL_ROWS */ IC_TM.ID ID_TELEIC ,DECODE(EST_O.SERVIC...
asked by 20.02.2018 / 18:45
1
answer

Exception nullpointerexception [duplicated]

Good day to everyone, I ask you for help because I am just starting to program in this wonderful language. I'm looking at the subject of sockets. The application that I am developing is an exercise of a course. It consists of two applications,...
asked by 13.02.2018 / 01:32
0
answers

I need to move my operations to another file

I am something new in Java and I have a program that displays a graphical interface and calculates the roots of a second degree equation (x1 and x2), if the discriminant is < 0 and several other cases: import javax.swing.JFrame; import java...
asked by 13.02.2018 / 05:57
1
answer

(Android) Read text from web file

I'm doing an application in which I need to read a string of a file hosted in a hosting and display it in a Toast, with the attached code works without problems from Eclipse but in Android Studio I can not get it to get me that string . Any idea...
asked by 15.02.2018 / 10:16
2
answers

java.lang.ClassNotFoundException Java Netbeans

Hello friends can help me with an error in execution time, please if someone gives me an idea to solve it.    java.lang.ClassNotFoundException I've been trying to solve a lot of time trying some solutions on google but it's still the sa...
asked by 11.02.2018 / 21:47
1
answer

Classes that are source of events for listeners of different interfaces

Talking about personalized events by the user. In the case that a class is a source of events for listeners that implement different interfaces, I create a list of listeners and in the event distribution loop I discriminate to the interface that...
asked by 12.02.2018 / 08:12
0
answers

Enable a Command in RCP Eclipse

I just created a command and I want to make it work with the creation of a Handler but when I run this error comes to me. It says that the command that you created earlier is not enabled. The question: How do I enable it? Her...
asked by 12.02.2018 / 10:01
1
answer

Avoid session tracking in Java

How can I avoid session tracking ?. Since I have an application every time you enter the login page remember the password and contraseña . To go to the page of login I use response.sendRedirect("login.html");...
asked by 19.02.2018 / 16:22
0
answers

Save file in a folder with a java webservice?

I am using this project ( link ) to make the electronic signature with a webservice, but at the time of testing it does nothing. XAdESBESSignature.firmar(input_file_path, key_store_path, key_store_password, output_path, out_file_name) Recei...
asked by 19.02.2018 / 18:27
0
answers

What is the Function of Class AbstractAction JAVASEE 7?

Hi, I'm looking at the following code: /** * On default select the represented agent and do the former original action * @return */ @Override public Action getPreferredAction() { return new AbstractAction() { @Override...
asked by 19.02.2018 / 18:22