Questions tagged as 'java'

Tagged questions
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Open report jasper reports on Web Server

I can not open my reports on the Web Server, after deploy. My project is java hibernate with maven. When I try to print a report I get this tomcat log:    Tomcat Log 19-Aug-2017 20:35:32.050 WARNING [http-nio-8080-exec-10] com.sun.fa...
asked by 19.08.2017 / 23:03
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In the java folder I have three subfolder, is it normal?

I'm having trouble with:    java / lang / NoClassDefFoundError: java / lang / object. I've done a lot of things that my colleagues asked for and nothing. I updated PATH and JAVA_HOME and nothing. My Classpath: ;%JAVA_HOME%\lib;%JAVA_HOM...
asked by 22.08.2017 / 21:34
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Problem with infinite loop RandomAccessFile

I am using this code to read a text file using RandomAccessFile , character by character, and generating a string for each word formed, to save in a HashMap. I need to use RandomAccessFile because I need to know the position of the...
asked by 18.08.2017 / 04:58
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Error in method of merging elements with Mergesort into a ListInteger

This part of the algorithm has the function of interleaving the elements of a List<Integer> (list of normal integers) using the Mergesort sort algorithm. ERROR ON LINE 7 private static List intercalar(List<Integer> list, i...
asked by 18.08.2017 / 20:40
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Change variable value inside anonymous class

I would like to know the reason that whenever inside an anonymous class I try to change the value of an "external" variable it does not, changes remain the same. Would there be something similar that could do that would give the same result?...
asked by 22.08.2017 / 21:58
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Malfunction of the Remove method in the defined position in the Pivot List

The following method performs a removal of an element at a pre-defined position in the test class but does not appear to be working even though it has no syntax errors and errors in the test done by the teacher. public void removerPosicao(int...
asked by 15.08.2017 / 23:09
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How to store in a list the last 5 opening dates of an Android activity

public class Activity extends AppCompatActivity { Calendar c = Calendar.getInstance(); SimpleDateFormat sdf = new SimpleDateFormat("dd:MMMM:yyyy HH:mm:ss"); String strDate = sdf.format(c.getTime()); @Override...
asked by 13.08.2017 / 21:43
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Separate content from the CSS menu

I'm wanting to leave the links on the Control Drivers page, Control Passengers, Control Racing, from the menu a little more separate but spaced, but I'm not getting it. <%@pagecontentType="text/html" pageEncoding="UTF-8"%> <!DOCTYP...
asked by 09.09.2017 / 03:18
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Hibernate does not save oneToMany

I have a relation 1 - > n between Connection and Reporting. The classes are as follows: @Entity @Table(name = "conexao") public class Conexao { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "CONEXAO_ID", unique = tr...
asked by 14.08.2017 / 13:26
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Error creating multiple buttons in XML (Android Studio)

I'm creating an Android application that needs to have 20 buttons and each button will open a different screen. The application compiles correctly, but when I get to the screen that has the 20 buttons it automatically closes, I realized that if...
asked by 10.08.2017 / 05:30