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JAVA QUESTIONS

Simple Date Format, Parsing Exception
Simple Date Format, Parsing Exception
this will help Using Android Studio , Your input format needs yyyy (not EEE). Something like,
TAG : java
Date : November 08 2020, 09:00 AM , By : user4570649
How can I highlight a MapMarkerDot in Openstreetmap?
How can I highlight a MapMarkerDot in Openstreetmap?
This might help you The MapMarkerDot parent implementation of paint() in MapMarkerCircle ignores the Stroke specified in Style, but you can extend MapMarkerCircle to use a larger radius and render anything at all. In the example below, the Update but
TAG : java
Date : November 08 2020, 09:00 AM , By : venu
Add layout over Google map fragment
Add layout over Google map fragment
To fix the issue you can do I have 'RelativeLayout' and GoogleMap fragment. , Make your layout clickable android:clickable="true"
TAG : java
Date : November 08 2020, 09:00 AM , By : namzy
Why is this while loop not terminating?
Why is this while loop not terminating?
Hope that helps readLine() will only return null when it reaches EOF, which for a socket connection will be when remote side closes. If the slaves don't close connection and stop, you will be looping forever (well, readLine() will block). So, you nee
TAG : java
Date : November 08 2020, 09:00 AM , By : Sanjit
How to get the text filled in feedback form of my app to my email address? Please see details
How to get the text filled in feedback form of my app to my email address? Please see details
this one helps. Ok, seems like you are using Intent.EXTRA_STREAM which involves a 'file', and you don't have any file, don't you? (check this answer: Android: Intent.ACTION_SEND with EXTRA_STREAM doesn39;t attach any image when choosing Gmail app on
TAG : java
Date : November 08 2020, 09:00 AM , By : laleet
Tomcat + Jersey + MySQL No operations allowed after connection closed
Tomcat + Jersey + MySQL No operations allowed after connection closed
will be helpful for those in need Your connections are idle in the pool for too long and are getting dropped by MySQL causing an error when you use them You could tell the pool to test the connections before giving them to the application
TAG : java
Date : November 08 2020, 09:00 AM , By : sgnm
Java Filelock to prevent multiple writes by multiple JVM processes not working
Java Filelock to prevent multiple writes by multiple JVM processes not working
may help you . Remove the f.close() method and it should work. To remove the warning in your comment, declare those variables as instance variables and do an f.close in probably another method like removeLock().
TAG : java
Date : November 08 2020, 09:00 AM , By : Dhanya Sasidharan
Generics and lambdas - different behavior in javac and Eclipse compiler
Generics and lambdas - different behavior in javac and Eclipse compiler
Hope this helps Yes, you're right in every aspect. I honestly wouldn't be able to link to specific lines of the JLS about this: type inference is a whole chapter.Disclaimer: I tested using Eclipse Mars 4.5.1 and JDK 1.8.0_60.
TAG : java
Date : November 08 2020, 09:00 AM , By : Drew
Editing Spreadsheet using Java
Editing Spreadsheet using Java
wish helps you here is the library you are looking for. it uses the google gdata library. it's an outdated library but its the only one available and the spreadsheet api is also outdated and the only one that google has made available.https://develop
TAG : java
Date : November 08 2020, 09:00 AM , By : Timothy Cambe
Maze path searching DFS java
Maze path searching DFS java
should help you out There're a few bugs in your code. I slightly modified your code and now it works.Some key observations:
TAG : java
Date : November 08 2020, 09:00 AM , By : Blake Atlas
'variable' cannot be resolved to a variable
'variable' cannot be resolved to a variable
will be helpful for those in need EDIT: as you said in your comment, you need to reuse seats somewhere else in your code.Because of that, I suggest you do the following:
TAG : java
Date : November 08 2020, 09:00 AM , By : Derek Grant
keys() is undefined for the type JSONObject
keys() is undefined for the type JSONObject
it helps some times You're looking at the documentation for the wrong library. In json-simple, JSONObject extends HashMap, so you should use keySet()... or change to use the json.org library instead.
TAG : java
Date : November 08 2020, 09:00 AM , By : Tidiane Diabate
Android Application is not submitting details to an external database
Android Application is not submitting details to an external database
wish of those help I am having an issue with submitting data to a database from within my android application, I have referenced a .php file on the website which we are going to use: , You should try with thread or AsyncTask. Example -
TAG : java
Date : November 08 2020, 09:00 AM , By : K.Takata
Only last element is showing in the listView multiple times
Only last element is showing in the listView multiple times
I think the issue was by ths following , addValues = new GetterSetter(); you are using one object, and adding one same object mulitiple times.so you should create GetterSetter object in your for loop
TAG : java
Date : November 08 2020, 09:00 AM , By : KingSpycrab
Given, when, then convention together with exception handling. With Mockito and JUnit
Given, when, then convention together with exception handling. With Mockito and JUnit
this one helps. First of all, I think your tests are ok even if some don't exactly follow the given/when/then sequence, but good for you if you want to standardize the organization of your tests for improved readability.There are lots of valid ways t
TAG : java
Date : November 08 2020, 09:00 AM , By : iCodeMonkey
Why passing null while dependency injection is not recommended?
Why passing null while dependency injection is not recommended?
it helps some times I'm not sure why that breaks the "Single Responsibility Principle"; your object is not changing anything but its state and/or identity.There is another caveat: if your object doesn't need all the parameters, is it really that type
TAG : java
Date : November 08 2020, 09:00 AM , By : Paulo Diez
With Heroku, how can I automatically start a Java app that doesn't bind to a port when the app is deployed?
With Heroku, how can I automatically start a Java app that doesn't bind to a port when the app is deployed?
will help you This is a bit of a hack, but you could use the "web" proc type and start a simple web server alongside your Java process. For example:
TAG : java
Date : November 08 2020, 09:00 AM , By : BojanaBike
What's the best way for add a wait time before every request?
What's the best way for add a wait time before every request?
Hope this helps It depends if you want at least a certain amount of time to wait. Thread.sleep is not guaranteed to sleep the time you provide as argument. Also sleep can be interrupted, so you need to take this into account.You can do something like
TAG : java
Date : November 08 2020, 09:00 AM , By : Smary Singh
Generating a Random Pin of 5 Digits
Generating a Random Pin of 5 Digits
will help you I would suggest to generate random number using SecureRandom class and then as it needs to be of 5 digits create a random number between 0 and 99999 using random.nextInt(100000) , here 0 is inclusive and 100000 is exclusive and then for
TAG : java
Date : November 07 2020, 01:43 PM , By : Vu Nguyen
Get Time difference between two Timestamps
Get Time difference between two Timestamps
may help you . Find the difference in milliseconds, and divide by the number of milliseconds in a minute (60,000):
TAG : java
Date : November 07 2020, 01:43 PM , By : Pablo201
Problems with JTable and GridBagLayout
Problems with JTable and GridBagLayout
it fixes the issue When using a GridBagLayout the components are displayed at their preferred size when the frame is packed.The weightx parameter only applies when the frame is resized. If the width is increased, then the extra spaces is allocated ba
TAG : java
Date : November 07 2020, 01:43 PM , By : Eva Fung
Receiving a String from a Java SocketServer in an Android App
Receiving a String from a Java SocketServer in an Android App
hope this fix your issue Yeah so on Android the threading model means that the "main thread" is what your app is normally running on, as well as executing the code you write, it also executes the code to draw to the screen. Therefore if you did netwo
TAG : java
Date : November 07 2020, 01:43 PM , By : Geovany De Jesus
Cannot make my program executable when using Ecplipse export
Cannot make my program executable when using Ecplipse export
it should still fix some issue as you did not explain the exact problem, I might only give hints:
TAG : java
Date : November 07 2020, 01:43 PM , By : Виталий Баландин
Can't add a GwtQuery (1.0.6) DragAndDropCellTree in GWT (2.7) GWTP (1.5) project
Can't add a GwtQuery (1.0.6) DragAndDropCellTree in GWT (2.7) GWTP (1.5) project
I think the issue was by ths following , Looking at the source code for CellBasedWidgetImplStandard.java I can see exactly why it's failing. The second argument it's passing to DOM.dispatchEvent() is:
TAG : java
Date : November 07 2020, 01:43 PM , By : khalf alla Ahmed
OOP Date Conversion - Java
OOP Date Conversion - Java
Any of those help You have to create an Object of your custom class to test it.Tip : Date is the name of a class that already exists in Java, try maybe something like CustomDate or MyDateClass
TAG : java
Date : November 07 2020, 01:43 PM , By : frenchbeard
Is this a valid way to assign a random number to a variable?
Is this a valid way to assign a random number to a variable?
Does that help I have seen a lot of different ways to generate random numbers in between a certain range. Just today I came across the following piece of code. but upon doing research, I did not see anybody describe it this way. , To generate a rando
TAG : java
Date : November 07 2020, 01:43 PM , By : Supriadhy Adhye
Image icon not working?
Image icon not working?
Any of those help In your manifest file, change @mitmap to @mipmap. That's the correct directory name.
TAG : java
Date : November 07 2020, 01:43 PM , By : Pokeashpoke
how to store file contents if match a condition
how to store file contents if match a condition
will help you Your question is a bit difficult to understand but, I give it a try and imagined the scenario. I assume that you have already created Album and Track classes and everything works. I assume that your albums file looks as follow:
TAG : java
Date : November 07 2020, 01:43 PM , By : Dann11
Remove whole (or multiple) line with search and replace in eclipse
Remove whole (or multiple) line with search and replace in eclipse
like below fixes the issue You can do text search by using Ctrl+h with scope as workspace then it will be searched in all projects in the workspace and will show in search result. Now for each file do Ctrl+F and replace it.If you are using Notepad++,
TAG : java
Date : November 07 2020, 01:43 PM , By : Gabriel OR
Can't send request from app to web app
Can't send request from app to web app
To fix this issue 1 be sure you connect to the server192.168 and 10.0 are local addresses (not going to internet)
TAG : java
Date : November 07 2020, 01:43 PM , By : Nispand Mehta
Java - HashCode - Equals
Java - HashCode - Equals
wish helps you To compare is easy, you need to override hashCode and equals or use a comparator, if you did not do that then the message you get is perfectly normal.Here you set the groupModel AND modify the groupModel.
TAG : java
Date : November 07 2020, 01:43 PM , By : urr
Java program that concatenates the contents of several files into one file...?
Java program that concatenates the contents of several files into one file...?
hope this fix your issue You should put the while loop inside of the try block and not the contrary. Otherwise you're closing the Scanner at the first loop and you can not use it anymore. Close your Scanner once you're never using it again.I honestly
TAG : java
Date : November 07 2020, 01:43 PM , By : James Rudisill
overriding not liked by the compiler
overriding not liked by the compiler
hope this fix your issue You need to use the generic parameter P in class Widget when you override the method:
TAG : java
Date : November 07 2020, 01:43 PM , By : Scott McHugh
Can we create ArrayList of a class inside that class in Java?
Can we create ArrayList of a class inside that class in Java?
hope this fix your issue Creating an ArrayList inside the constructor of class T will not create a recursive loop, because you are not creating additional instances of T, merely a container into which you can later add T instances.
TAG : java
Date : November 07 2020, 01:43 PM , By : PRS
Java Strange Float Behavior
Java Strange Float Behavior
I hope this helps . The problem is that, although you're generating random numbers in your desired range, you're systematically discarding all the ones over -999.Consider code like this:
TAG : java
Date : November 07 2020, 01:43 PM , By : zZz
JMS Wildfly implementation
JMS Wildfly implementation
should help you out Finally got this working, I couldn't find a start to finish example of setting this all up, but managed to piece it all together from different examples.the Sender(Producer) and Receiver(Consumer) don't need to be running on the s
TAG : java
Date : November 07 2020, 01:43 PM , By : Jeffrey Snyder
How do I fix the constructor so it works with the parameters I want?
How do I fix the constructor so it works with the parameters I want?
I wish this helpful for you CustomListAdapter is only capable of dealing with an array of Containers. Each container seems to have the properties you try to supply to the adapter's constructor.To make it work you'll either need to turn the data you h
TAG : java
Date : November 07 2020, 01:43 PM , By : Cal Wright
Cannot find symbol class @load
Cannot find symbol class @load
may help you . I think you mean to use the @Override annotation rather than the @load annotation.
TAG : java
Date : November 07 2020, 01:43 PM , By : John J Martinez
Crash when i try to update TextView
Crash when i try to update TextView
With these it helps I'm trying to do an calculator app (school project), so i need a TextView for displaying the numbers. Because it's my first java project i wanted for the beginning to make a counter which displays how many times the button was cli
TAG : java
Date : November 07 2020, 01:43 PM , By : barae
In "Clean Code," how do variable number of arguments affect whether the function is monad, dyad or triad?
In "Clean Code," how do variable number of arguments affect whether the function is monad, dyad or triad?
I wish this helpful for you The author is just trying to say to count a variable argument like Integer... as a single argument when counting whether a function is monad, dyad, or triad. The reasoning is it's de facto equivalent to passing a List. (It
TAG : java
Date : November 07 2020, 01:43 PM , By : Maxim Maxim
String from Activity1 in Youtube player in Activity2
String from Activity1 in Youtube player in Activity2
I wish did fix the issue. You are misusing putExtra. putExtra works with a key-value pair. The key is a String which acts as an identifier or index for the value. The value can be a String, int, boolean, etc.The keys should be stored either in XML or
TAG : java
Date : November 07 2020, 01:43 PM , By : Wood Removal
JAX-WS adding addressing for iBM websphere, IBM web services client
JAX-WS adding addressing for iBM websphere, IBM web services client
Any of those help As stated here, the way to go would be to add the AddressingFeature where you create your Port (example taken from Oracle docs):
TAG : java
Date : November 07 2020, 01:43 PM , By : Anton M
Transform string "3,55" to "3.55" java
Transform string "3,55" to "3.55" java
it fixes the issue Assuming that your value is in String value = "3,22" you should call value.replace() and pass the replace function two arguments. First argument is the argument that should be find and replaced with the second argument. replace() r
TAG : java
Date : November 07 2020, 01:43 PM , By : SStorm
Array out of bounds java
Array out of bounds java
this will help You're asking for the number of players, but not reading input; instead you're reading the args to the program to figure out the number of players.Likely you're not passing any arguments on the command line, so it's throwing an excepti
TAG : java
Date : November 07 2020, 01:43 PM , By : Gilberto Arizpe
Android: Job Scheduler for planner
Android: Job Scheduler for planner
should help you out No. JobScheduler is for short term background tasks like when you want to download a file in the near future and want the system to find an ideal time for you. E.g. you want to download a big update file and want the device to be
TAG : java
Date : November 07 2020, 01:43 PM , By : Kevin12087
JFrame.getComponentCount with 3 jPanels returns 1
JFrame.getComponentCount with 3 jPanels returns 1
around this issue You're getting back the count from the JFrame's single contentPane component. To get the sub components, call the method on the contentPane itself.
TAG : java
Date : November 07 2020, 01:43 PM , By : JOYCE FALER
How to implement Java method returning a generic type parametrized with array in Scala?
How to implement Java method returning a generic type parametrized with array in Scala?
I hope this helps . Please see this: https://issues.scala-lang.org/browse/SI-4390I'm not sure I fully understand why, but you need to specify E with Object in return value for it to compile. The error informs you about that. Probably this is because
TAG : java
Date : November 07 2020, 01:43 PM , By : jhwang
TextView does not show log
TextView does not show log
will help you Okay I am new with android and i have been following a course but there are somethings that i don't understand. , fix your onCreate to set the field parameter not a local parameter:
TAG : java
Date : November 07 2020, 01:33 PM , By : kenron
How can i set a color to the last inserted record in Android?
How can i set a color to the last inserted record in Android?
will be helpful for those in need You can Try something like this:I did not run this code but you can use this code as a pseudo code :
TAG : java
Date : November 07 2020, 01:33 PM , By : sky
Clear a list after adding its elements to another list
Clear a list after adding its elements to another list
Hope this helps I'm doing a program that gets as parameter more sentences. And I made 2 lists, one called "propozitie", which contains each sentence, and one called "propozitii", which contains all sentences. , This is because, the statement propozit
TAG : java
Date : November 07 2020, 01:33 PM , By : David Pochopsky
What can we do with an exe program?
What can we do with an exe program?
wish help you to fix your issue EXE is a file extension for an executable file format. An executable is a file that contains a program - that is, a particular kind of file that is capable of being executed or run as a program in the computer. An exec
TAG : java
Date : November 07 2020, 01:33 PM , By : Mike Hawkins
Why is adding an OnClickListener inside onBindViewHolder of a RecyclerView.Adapter considered bad practice?
Why is adding an OnClickListener inside onBindViewHolder of a RecyclerView.Adapter considered bad practice?
around this issue The reason it is better to handle your click logic inside the ViewHolder is because it allows for more explicit click listeners. As expressed in the Commonsware book:
TAG : java
Date : November 07 2020, 01:33 PM , By : mohsen74persian
For loop that checks if a string contains symbols?
For loop that checks if a string contains symbols?
like below fixes the issue Read the whole line from the Scanner. Otherwise you Scanner will tokenize your input from all the white spaces.Use can use your status variable for final printing too. No need to add other if-else statements.
TAG : java
Date : November 07 2020, 01:33 PM , By : Razvan Tache
Can I use a lambda expression to accumulate the sum in the variable?
Can I use a lambda expression to accumulate the sum in the variable?
it should still fix some issue I have an Item[] items which contains some basic stats about itself. , Yes, you could have the following:
TAG : java
Date : November 07 2020, 01:33 PM , By : Cody Deeran
Calculate screen coordinates for remote desktop application
Calculate screen coordinates for remote desktop application
hope this fix your issue If I properly understand what you want to do, you are scaling your targets resolution up/down displaying a smaller/bigger image of the remote desktop. So you need to calculate the transformation with the scale factor you use.
TAG : java
Date : November 07 2020, 01:33 PM , By : user4569936
Getting error when using object[] in constructor when using reflections in java
Getting error when using object[] in constructor when using reflections in java
wish helps you newInstance takes variable arguments. When you pass it an array, it translates to a varargs call, as if each element in that array were a separate argument to the constructor.This is generally solved like the following:
TAG : java
Date : November 07 2020, 01:33 PM , By : van
Hibernate bean in Spring fails to load throwing java.lang.NoSuchMethodError
Hibernate bean in Spring fails to load throwing java.lang.NoSuchMethodError
This might help you Finally I solved the issue. It was actually for Hibernate and Spring version compatibility problem. I switched the dependency to Spring 4.0.6 and Hibernate 4.0.3 and it work like magic :) and obviously thanx to @dunni for pointing
TAG : java
Date : November 07 2020, 01:33 PM , By : Baeo Maltinsky
How to check if all tasks running on ExecutorService are completed
How to check if all tasks running on ExecutorService are completed
This might help you There isn't a clean way to check if all Runnables are done if you use ExecutorService.execute(Runnable). Unless you build a mechanism to do so in the Runnable itself (which is sloppy in my opinion).Instead:
TAG : java
Date : November 07 2020, 01:33 PM , By : Max
Java Inheritance: Why calling a method at the parent constructor level, calls the overridden child method?
Java Inheritance: Why calling a method at the parent constructor level, calls the overridden child method?
around this issue This is polymorphism 101. The most specific - i.e. lowest on the inheritance tree - version of a method is invoked within a class hierarchy. If you had not overridden the fruitName() method at all then the base class method would be
TAG : java
Date : November 07 2020, 01:33 PM , By : joe Sturla
What is replacement of Sparse Array to be able to add same keys in this case?
What is replacement of Sparse Array to be able to add same keys in this case?
it should still fix some issue There are several ways to do this. For example, without need to remove elements, you can use a sorted navigable collection such as a TreeSet.
TAG : java
Date : November 07 2020, 01:33 PM , By : Swizzy79

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