I am developing stomp+WebSocket using Intellij Idea. Now I need to know: how to search string from Intellij Idea global? For example, I got this error: And I go to class WebSocketAnnotationMethodMessageHandler in spring-websocket.jar(Maven’s jar) and find nothing about this string:No matching methods or Searching methods to handle. So I want to search where the message is. How to do?
expression evaluation using stack in java
My program is working with expression like 12 + 3 * 45.But Its not working expression like 12*4+(7/2). please give correction in my code.I am attaching my code: Answer Let’s take a look at your block which parses digits: Let’s assume our tokens are {‘1’, ‘+’, ‘2’} and your initial i value is 0. We’re entering the if-body (as tokens[0]
Logback conversion rule parametrizing
Is there any way of parametrizing conversion rule in Logback? I’ve tried adding child nodes, additional attributes and I don’t see a way to do it. I would like to add parameter that will be used by LongMessageConverter class. My application is setup on Spring Boot and I am using Sl4J. Answer This is more a question around Logback than
The Properties.load would close the InputStream?
I saw this example, and I didn’t see the close() method invoked on the InputStream, so would prop.load() close the stream automatically? Or is there a bug in the example? Answer The Stream is not closed after Properties.load () The above code returns “-1” so the stream is not closed. Otherwise it should have thrown java.io.IOException: Stream Closed
How to find the longest string object in an arrayList
Here is is my problem, I have to explain a lot, because it’s a quite complicated. I have created an arrayList<Word>, that contains strings as objects. In my case, I have three classes, all working together, that is supposed to represent a dictionary. The first class is called “Word”, it has a constructor, and has simple methodes like .length, adds
Why does MockMvc always return empty content()?
I’m trying to test my rest api with mockMvc. The test failed because of: From the output of print(), I can know the API actually returned the expected string “iPhone”. And I guess the empty “Actual” above is caused by empty “Body” below My questions are: Why MockHttpServletResponse’s Body is empty; How can I correctly test the response of API.
Error creating bean with name ‘entityManagerFactory’ defined in class path resource : Invocation of init method failed
When I compile my spring project, I got the following error. Error creating bean with name ‘entityManagerFactory’ defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed I am using STS Eclipse and MySql Database My Connection string in Application.Properties is The detailed error is given below Answer I would start by adding the following dependency: and UPDATE: Or
Spring boot and Thymeleaf – Hot swap templates and resources once again
I tried all tips and tricks that I found here and in docs, but still no luck. I have Spring webapp with Thymeleaf. Resources and templates are not reloaded when I call update in IDEA (it says nothing to reload). I can then press ctrl+f5 in a browser like crazy, changes are just not there. Everything is configured in one
What is a StringIndexOutOfBoundsException? How can I fix it?
This is my code: It’s the default given from the android documentation. I only changed the url. This is my error message: java.lang.StringIndexOutOfBoundsException: length=28; regionStart=1; regionLength=499 at java.lang.String.substring(String.java:1931) at com.example.my.app.MainActivity$2.onResponse(MainActivity.java:50) at com.example.my.app.MainActivity$2.onResponse(MainActivity.java:46) at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:60) at com.android.volley.toolbox.StringRequest.deliverResponse(StringRequest.java:30) at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) During debugging I see that at mTextView.setText(“Response
Is it possible to use Color Hex in JLabel like #02f7fc?
Is it possible to use Color hex in JLabel such as #02f7fc? I want to use A-F colors. Using label.setForeground(Color.(BLUE/RED/BLACK/…); is so boring. Answer The following should allow you to set the colour using hex with the use of the decode method.