Questions tagged as 'java'

Tagged questions
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X data colors in Barchart?

How to show the description of the data next to the colors that are marked in the image below? Bookstore: link     
asked by 20.02.2018 / 13:26
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clock with several alarms in arduino

I'm doing a project with arduino and when I compile it I want the menus to appear for the different alarms and change the time but it does not appear Can you tell me what the error is? #include <Wire.h> #include <LiquidCrystal_I2C.h&g...
asked by 12.03.2018 / 23:08
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How to use variable int for meter meter java and jfreechart

I need the variable int pressure to be equal to the dataset so that it shows when this value changes represented in the graph package puertocom; import java.awt.*; import javax.swing.JPanel; import org.jfree.chart.ChartPanel; imp...
asked by 13.03.2018 / 06:00
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because the error failed because of: org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected token?

I have the following query in oracle select NDATETIME, Case NREADERIDN WHEN 52730 THEN 'INDEPENDENCIA' WHEN 52731 THEN 'INDEPENDENCIA' WHEN 52734 THEN 'TRIANGULAR' WHEN 52735 THEN 'TRIANGULAR' WHEN 52737 THEN 'INDEPENDENCIA...
asked by 12.03.2018 / 22:45
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What causes the error: stack, heap or the type of data handled?

I have been asked to calculate the sum of the random integers in an array of 100 million positions, for this I have increased the size of the heap and the stack by executing it with the command "java -Xxs512m -Xss512m lab01" however still After...
asked by 19.02.2018 / 02:58
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Error Generating Class Diagrams with EasyUML

Trying to generate the class diagram of my project in java-netbeans gives me this error ..... They can help me with solution ideas or in this case some other method to generate the class and case diagrams of use, it should be noted that the plug...
asked by 18.02.2018 / 21:20
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Error in client / server java

I'm starting with the subject of sockets in java and I have an exercise in which they ask me to read a file that asks for it with the client and the server shows me its connectivity. public class Servidor extends Thread { static final int por...
asked by 18.02.2018 / 22:15
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Error creating classes, saving and executing projects in Netbeans

I have the latest installed version of Netbeans and it has always worked perfectly for me, but while doing a practice with graphical interfaces in Java, I get an error (Not of the code, but of Netbeans) And I can not save any project (It says th...
asked by 17.02.2018 / 10:19
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Failed to execute goal org.apache.maven.plugins: maven-compiler-plugin: 3.1: compile (default-compile)

I am using NetBeans and Maven stopped compiling, I increase a class and it no longer compiles, I remove it and normal, I already tried deleting the repository, changing JDK, JRI, even netbeans and nothing cd D:\ASUS\Documents\NetBeansPro...
asked by 17.02.2018 / 16:39
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Doubt with exercises with Java maps

Suppose there is a trend dictionary with a string representing a date (mm-dd-yyyy) as a key and as a value a set of tags (hashtags) that were trends on Twitter for that date. For example:    trends = {'08 -22-2016 ': {' # Rio2016 ',' #BSC ','...
asked by 17.02.2018 / 00:33