In python you can do this: Is there an equivalent in java? Answer tl;dr: No, there isn’t such a thing in Java. You can assign initial values to variables like this: But if your want (1, 2, 3) to be the result of a method call, this is not possible in Java. Java does not allow returning multiple values. …
Using WatchService in JAVA. Can I watch subdirectory at the same time?
In JAVA I will watch directory by using WatchService. For example if I watch /users/monitor, WatchService can watch only one directory. But I wanna watch every subdirectory ‘at the same time’ How can I code? T_T —————————code——̵…
Filtering using predicates
I have used predicates before to filter collections as follows: For the above I used Java 8 and the latest Guava library. However I’m working on an assignment where I am restricted to Java 6 and version 13.0.1 of Guava with zero chance of getting them to update their maven repo. I am struggling to get a…
ActiveMQ setup – Unable to send the message to Queue (error – java.io.IOException: Unknown data type: 47)
I have installed ActiveMQ and could access the url at – http://localhost:8161/admin/queues.jsp. When I try to drop a message to a queue I am getting the below error. The sample code is given below: Spring xml is: Error is: Answer The ‘Unknown data type: 47’ error is due to the configuration …
Can I manually load @ConfigurationProperties without the Spring AppContext?
Is there any way to load a class marked with @ConfigurationProperties without using a Spring Context directly? Basically I want to reuse all the smart logic that Spring does but for a bean I manually instantiate outside of the Spring lifecycle. I have a bean that loads happily in Spring (Boot) and I can injec…
Hide keyboard when navigating from a fragment to another
I have a Fragment that contains an Edit Text. When the Edit Text is pressed, the keyboard is being shown. When pressed the Save button in the upper corner, the application returns to the previous fragment, but the keyboard persists. I would like the keyboard to be hidden when navigating to the previous fragme…
Regular Expression in burp
I’m using a forward proxy called Burp and would like to see only results from google in my site scope. What will be the regex for if i want to see *.google.* in my result So sample output can be and so on Answer This should work for you: Will match anything before and after .google.
intellij incorrectly saying no beans of type found for autowired repository
I have created a simple unit test but IntelliJ is incorrectly highlighting it red. marking it as an error No beans? As you can see below it passes the test? So it must be Autowired? Answer I had this same issue when creating a Spring Boot application using their @SpringBootApplication annotation. This annotat…
Find closest factor to a number, of a number
I am trying to automate the finding of the closest factor of a number to another number; Example: Closest factor of 700 to 30 is 28 (30 does not go into 700, but 28 does). An obvious solution is just to get all the factors of 700 and do a simple distance calculation to find the nearest factor to 30,
Fetching Oracle DB LONG type through jdbc works very slow
This happens only when the statement return LONG column. Even if i don’t do anything with it such like rs.getString, just execute. sql1: That was: 7593 ms sql2: That was: 530 ms As you can see it’s not about volume of data. When i use OracleConnection:OracleStatement:OracleCachedResultSet result i…