I got an HTTP outbound-endpoint that does a GET method to an specific URL, thing is that if i add a variable in the path URL it will throw an exception… i believe this is not being supported. This is my FLOW: This is the exception stacktrace Tried searching a lot in Google but i got no clue on what̵…
Convert Java Number to BigDecimal : best way
I am looking for the best way to convert a Number to a BigDecimal. Is this good enough? Can we lose precision with the toString() method ? Answer This is fine, remember that using the constructor of BigDecimal to declare a value can be dangerous when it’s not of type String. Consider the below… Th…
How to fix error YouTubeInitializationResult.SERVICE_INVALID
I try use Youtube API in my Android App, my app looke like this: But when i install on my real device, I get a error : Initialization Fail- Service invalid I have no idea to fix this error. Let me hear your idea, thank you 🙂 Answer The Android YouTube API docs at: https://developers.google.com/youtube/android…
How to find an object in a Set of custom objects
The code below contains a Set of CustomObjects. I am trying to search an object in it. I’ve overridden equals() method to match it with a specific field, am not able to understand why is it not able to find it. “XXtNot FoundtXX” is getting printed instead of “Found!!” import java…
Find substring in List and return Index Number
I have an List, with Strings like: Now i would like to get the Index Number for the Substring “One”. How can i get this? I only could make it if i convert it to an Array and then: Isn’t there a way to search for the Substring without converting it to an Array? Answer List already contains in…
Android – Running a background task every 15 minutes, even when application is not running
I need to build a background task that runs every 10/15 minutes (doesn’t really matter, either is good), even when the application is not running. How can I accomplish this? I can’t seem the wrap my head around this. I read I could use some sort of runnable() functionality or use a background serv…
In Java, how to traverse two lists at the same time?
E.g. suppose we are sure that list1.size() equals list2.size(), how to traverse these two lists in one for statement? Maybe something like for(String str1 : list1, str2 : list2) ? Answer
What’s the difference between JPA and Spring Data JPA?
I am a bit confused about the difference between Spring Data-JPA and JPA. I know about JPA that it is a specification for persisting the Java Objects to a relational database using popular ORM …
How do I run a Java program from the command line on Windows?
I’m trying to execute a Java program from the command line in Windows. Here is my code: I’m not sure how to execute the program – any help? Is this possible on Windows? Why is it different than another environment (I thought JVM was write once, run anywhere)? Answer Source: javaindos. Let…
PageOutputStream causing java.lang.OutOfMemory
We have a struts2 web application running in Tomcat 7 that is intermittently experiencing the same problem: Application operating perfectly normally After a variable amount of time (anywhere from 10 minutes to 7 days) the application slows down to a halt Multiple java.lang.OutOfMemory errors in catalina.out L…