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JAVA QUESTIONS

Using ORMLite to Save PostgreSQL Custom Enumerated Datatypes
Using ORMLite to Save PostgreSQL Custom Enumerated Datatypes
this one helps. In general ORMs play poorly with custom database types. You might have some luck by setting the stringtype to unspecified; append stringtype=unspecified to your JDBC parameters. This tells PgJDBC to send parameters of type java.sql.Ty
TAG : java
Date : November 15 2020, 06:54 AM , By : user2948751
Why is i++ looping twice here?
Why is i++ looping twice here?
around this issue When below code executes i=0, j=0 and length = 9 and loops = 3 , Got the fix :
TAG : java
Date : November 15 2020, 06:54 AM , By : user2948733
spring boot with spring security : Error creating bean with name 'securityFilterChainRegistration'
spring boot with spring security : Error creating bean with name 'securityFilterChainRegistration'
Any of those help First your list of dependencies includes explicit ones for Spring, Spring Security etc. don't do that use the Spring Boot starter poms for that to get supported versions of Spring. So remove those and add the spring-boot-starter-sec
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948629
Neo4j : Passing Relationship as a query parameter
Neo4j : Passing Relationship as a query parameter
seems to work fine you should not use start n=node(*) in your query use a label like :Profile and an index/unique constraint on :Profile(id)
TAG : java
Date : November 14 2020, 04:51 PM , By : Mike Maynard
Spring Boot App runs scheduled job twice
Spring Boot App runs scheduled job twice
wish of those help My Problem is that the scheduled method "updateMembers" is called twice. I googled for hours now and all i found was that the Problem may is that the class Scheduler is initialized twice but i don't know how to fix this. Any sugges
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948585
Pause Android app until button press
Pause Android app until button press
hop of those help? I have two methods: go() and stop(), and a for loop looping through these methods 3 times. go() activates automatically when the loop starts and stop() will only activate once a button is pressed 3 times: , You cannot pause main th
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948583
Spring @Scheduled fixedRate giving odd results?
Spring @Scheduled fixedRate giving odd results?
help you fix your problem I seem to have found the cause of the double instantiation problem. It was the following.We had the following two main configurations:
TAG : java
Date : November 14 2020, 04:51 PM , By : Chris Magee
how to hide text on JButton in java?
how to hide text on JButton in java?
I hope this helps you . It's not a very good practice to set the text of a button to use it in comparisons etc, you should find another way to do that; maybe change your gumbi object to a Map.If you insist on using setText you could set the same colo
TAG : java
Date : November 14 2020, 04:51 PM , By : Help
Apache Spark: How can i access nested array of integers within Tuple2 object in Java?
Apache Spark: How can i access nested array of integers within Tuple2 object in Java?
hope this fix your issue I am new to spark and i am trying to perform a mapping of words to counts and errors for the implementation of Space Saving Algorithm. For every word i need to keeps its counts and its errors. My code the following. The probl
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948522
Estimate the average time when the value of a given parameter is increasing
Estimate the average time when the value of a given parameter is increasing
I hope this helps you . There is the following array track which indicates the increase of some parameter. Each row refers to 5 days: , change the inner while to this:
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948509
Spring authentication for calls after login?
Spring authentication for calls after login?
it should still fix some issue The key component in Spring Security is its security filter chain. With configuration you define what sort of filters are participating in the chain. These are some default ones (check the official documentation and Jav
TAG : java
Date : November 14 2020, 04:51 PM , By : Tom O.
Is there any reason to use generics in Java?
Is there any reason to use generics in Java?
wish help you to fix your issue Well, if you don't use generics, you get to cast each time. You would have to:
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948498
Open a new activity by pressing a button using on'Click
Open a new activity by pressing a button using on'Click
With these it helps You need to create a method with name one that takes a View and then create an Intent. Something like this:
TAG : java
Date : November 14 2020, 04:51 PM , By : MarK
Why PermGen is not populated faster?
Why PermGen is not populated faster?
To fix the issue you can do Why would having a method with a long name significantly increase the amount of space used by a class? The class loader will intern the method name, notice that the string already exists in memory and use that string rathe
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948491
Qt can't find platform plugins when loaded by JNI
Qt can't find platform plugins when loaded by JNI
wish of those help One solution would be to place your DLL/shared Qt C++ library under an accessible directory and add that directory name to Qt's library path:
TAG : java
Date : November 14 2020, 04:51 PM , By : Alexandros Harisiadi
How to make maven build of child module with parent module?
How to make maven build of child module with parent module?
wish helps you You need to create an aggregator project. See the link for more information on the aggregation concept.Basically, you create a parent project containing several "modules". When building the parent, the modules automatically gets built
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948434
Which is the equivalent of JLayeredPane in javaFX?
Which is the equivalent of JLayeredPane in javaFX?
With these it helps The equivalent of the Swing JLayeredPane would be the StackPane.
TAG : java
Date : November 14 2020, 04:51 PM , By : Doris Richardson
Is Using a List instead of an Array for generating Prime Numbers more efficient?
Is Using a List instead of an Array for generating Prime Numbers more efficient?
fixed the issue. Will look into that further Your algorithm is not efficient. So regardless of which data structure you useyou won't get a great performance speed-up. You should use another algorithm
TAG : java
Date : November 14 2020, 04:51 PM , By : LÙn LÒe LOẹt
Why can't we just use arrays instead of varargs?
Why can't we just use arrays instead of varargs?
may help you . I just came across varargs while learning android(doInBackground(Type... params)) ,SO posts clarified the use of it , The only difference between
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948373
Eclipse SVN Synchronze workspace error - Updating Synchronize view for SVN Workspace - java/nio/file/Paths
Eclipse SVN Synchronze workspace error - Updating Synchronize view for SVN Workspace - java/nio/file/Paths
To fix this issue Found a work around for this. Uninstalled all svn plugins from Eclipse and restarted it. Installed Subclipse svn plugin from http://subclipse.tigris.org/update_1.10.x
TAG : java
Date : November 14 2020, 04:51 PM , By : Hodoowarree
How to use java.util.scanner in android and java?
How to use java.util.scanner in android and java?
hope this fix your issue
TAG : java
Date : November 14 2020, 04:51 PM , By : Jocke
2 semi circle seekarc around a button
2 semi circle seekarc around a button
This might help you The suggestion by @corsair992 is very good. However, reimplementing onTouchEvent() in a FrameLayout descendant is not as easy at it sounds, since it's a very complex method with many special conditions. In this particular case, th
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948357
Passing database name in mybatis
Passing database name in mybatis
This might help you I need to pass the database name via a parameter in a hashmap. , You need to use ${} instead of {} for direct String substitution.
TAG : java
Date : November 14 2020, 04:51 PM , By : user2948339
Which Java Method will be called (Inheritance, No @Override)
Which Java Method will be called (Inheritance, No @Override)
I hope this helps . The @Override annotation is optional. It is not required to use it in order for a method of the sub-class to override a method of the base-class that has the same signature.Using the @Override annotation just helps to catch typos.
TAG : java
Date : November 14 2020, 04:51 PM , By : jean
How to access updated string from main class
How to access updated string from main class
I hope this helps you . Your problem is that your sha1 method is creating a new instance and setting the String of that new instance. Therefore, sb1 of your original instance (the one created in the main method) is never updated.Change :
TAG : java
Date : November 14 2020, 04:48 PM , By : Slabbalabba Ding Don
getting text from dynamically created edittext into a button android java
getting text from dynamically created edittext into a button android java
this will help you dont have to initialize the EditText again in the onClick. You should directly use the EditText object to get the text. So the line
TAG : java
Date : November 14 2020, 04:48 PM , By : Hiroki Makino
java replace e replaceAll. ReplaceAll not working
java replace e replaceAll. ReplaceAll not working
should help you out replaceAll works with regular expressions. In the replacAll method, $ is a reserved character used to reference groups defined in the regular expression given as first parameter, so you need to escape it.
TAG : java
Date : November 14 2020, 04:48 PM , By : user2948237
Weblogic hostname verification anomalies
Weblogic hostname verification anomalies
I wish did fix the issue. After a while I have found the solution of the problem I was encountering. The problem was that I thought that changing stuff in the admin console would be saved and loaded every time I started the server, but the truth is,
TAG : java
Date : November 14 2020, 04:48 PM , By : Sufyan80
HttpClient error
HttpClient error
I hope this helps you . you can not make it in the UI threadHere is an example using AsyncTask
TAG : java
Date : November 14 2020, 04:48 PM , By : user2948216
Getting ERROR unexpected token in Hibernate 4
Getting ERROR unexpected token in Hibernate 4
help you fix your problem member is a reserved word in HQL. Escape it by adding a table alias.Also, since member is of type Player, when your where clause contains member you need to provide a parameter of type Player. Alternatively if you want to pr
TAG : java
Date : November 14 2020, 04:48 PM , By : user2948172
@BatchSize but many round trips when fetching a @ManyToOne association
@BatchSize but many round trips when fetching a @ManyToOne association
With these it helps The @BatchSize makes sense on both One-To-Many and Many-to-One as well
TAG : java
Date : November 14 2020, 04:48 PM , By : user2948161
How to make a generic enum which could hold a Class<T>?
How to make a generic enum which could hold a Class<T>?
like below fixes the issue The value of an enum constant is always an object which is an instance of the enum class. You cannot make it have a different value; neither a reference to a class, nor anything else.You can add instance fields on your enum
TAG : java
Date : November 14 2020, 04:48 PM , By : Imtiaz Ahmed
How to read numeric values from excel in java?
How to read numeric values from excel in java?
I wish did fix the issue. I have a code to read a xls file in java. , To change cell type:
TAG : java
Date : November 14 2020, 04:48 PM , By : brizyyy
Rotation 180 degrees android doesn't work properly
Rotation 180 degrees android doesn't work properly
With these it helps If I change left-side-base to right-side-base (both are landscape view modes for user) the application (activity) doesn't recreate. Hense, the camera is shown as horizontaly flipped image. The same result when I try to change posi
TAG : java
Date : November 14 2020, 04:48 PM , By : GuiLl3 Creations
Process Redirect Linux Java
Process Redirect Linux Java
hope this fix your issue I have this code that works perfectly in Windows: , Found how to have it working for both OS:
TAG : java
Date : November 14 2020, 04:48 PM , By : Gamal Hamza
spring security escaping for username issue
spring security escaping for username issue
this one helps. You should use htmlEscape attribute of sprSec:authentication. See that.Example:
TAG : java
Date : November 14 2020, 04:48 PM , By : user2948096
How to change the position of the overflow menu in Android
How to change the position of the overflow menu in Android
hope this fix your issue How can I change the position of the overflow menu? , Just add a submenu:
TAG : java
Date : November 14 2020, 04:48 PM , By : user2948084
How to check if project contains specific file for launch shortcuts
How to check if project contains specific file for launch shortcuts
Does that help The trick is coupled with using forcePluginActivation. This defines that the Plug-in defining the property tester should be activated. If it is not activated, the property test cannot be performed. So, the final version of the code sho
TAG : java
Date : November 14 2020, 04:48 PM , By : EhJude
Custom adapter shows RuntimeException - ListView
Custom adapter shows RuntimeException - ListView
should help you out You get NPE because your theatreList is null. You don't initialize it anywhere.
TAG : java
Date : November 14 2020, 04:48 PM , By : Asmaa Elmoghazy
How to adjust GridLayout row height dynamically?
How to adjust GridLayout row height dynamically?
Hope this helps To overcome this situation, I chose CustomLayout with html template. through this way I got very easy control over my grid or in other word Table.mylayout.html (VAADIN/themes/mythemes/layouts)
TAG : java
Date : November 14 2020, 04:48 PM , By : Pramod Nair
How to write a regex in java to check whether a string contains two chars space and three integers?
How to write a regex in java to check whether a string contains two chars space and three integers?
wish help you to fix your issue I have a string String myString = "abc,QWAB 123,cdef";.
TAG : java
Date : November 14 2020, 04:48 PM , By : Schipper Zeezuiper
Java: Pass values to the jar using OutputStreamWriter
Java: Pass values to the jar using OutputStreamWriter
I wish did fix the issue. I guess I found the solution to my question. For future reference, the following is the final program that I've used to solve my problem:
TAG : java
Date : November 14 2020, 04:48 PM , By : aantunovic
A populated RecyclerView is empty
A populated RecyclerView is empty
fixed the issue. Will look into that further There is Problem in your Model Class. You should use getter and setter method in model class. The following code may help you.
TAG : java
Date : November 14 2020, 04:48 PM , By : Nikolka Deimosová
Why Class.forName("Test").getClassLoader()?
Why Class.forName("Test").getClassLoader()?
I wish did fix the issue. why do getClassLoader() needs to be called using Class object ?? why can't I simply call getClassLoader() using the object of any class present in that package ?? for instance why cant i simply get which Classloader loaded m
TAG : java
Date : November 14 2020, 04:48 PM , By : Karthik

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