How to sort array Answer use any sorting algorithm to do it. For beginner use bubble sort (easy to understand) Refer Wiki EDITED As @Pradeep Said: You may definitely use Array.sort()
Spring DeferredResult setResult causing 404
I am using the new spring 3.2 async servlet requests. All works well except in this one scenario… When someTest() is true spring/tomcat returns a 404. I am not sure how I should go about this or why this happens? I assume it might be because the Servlet Async Context has already been created. Is this a bug or am
Java Process cannot get the InputStream through Runtime.getRunTime().exec()
The Code has issues with getting the InputStream from the Process, because if I run the Shell script from my Terminal it runs completely fine, but if I Run the Script like this,the str is always null, I am using this code to get the output of the Shell Script directly into Java instead writing the Script Output in the
Get Minimum and maximum numbers from a list
Assuming we have a list containing integers and we need to find min & max. What is the best way to do it ? I can think of following : If number of reads are much higher than writes; keep the list in sorted manner. Whenever a number is added; add it in sorted manner. Now to get min and
Android: how to give bulletpoints, line break to text in textview
i have a textview with large text in it, but i want to give bulletpoints, line breaks , i tried placing xml entities like • for bullet point in my string.xml, but unable to get linebreak and few text comes in the middle, i like to use justify too it kind of works but I am unable to use justify
Mocking a Spy method with Mockito
I am writing a unit test for a FizzConfigurator class that looks like: I’d like to write a simple unit test that stubs the doWidget(String,Config) method (so that it doesn’t actually fire and hit the database), but that allows me to verify that calling doBuzz(String) ends up executing doWidget. Mockito seems like the right tool for the job here. This
How to create a HashMap with two keys (Key-Pair, Value)?
I have a 2D array of Integers. I want them to be put into a HashMap. But I want to access the elements from the HashMap based on Array Index. Something like: For A[2][5], map.get(2,5) which returns a value associated with that key. But how do I create a hashMap with a pair of keys? Or in general, multiple keys:
Bind elements to a list with spring mvc ModelAttribute
The question is based on getting a spring model attribute list element using an index from javascript on which explains that each name of the html element must contain an index. Example user[0] I have …
Regex to extract valid Http or Https
I’m currently having some issues with a regex to extract a URL. I want my regex to take URLS such as: Through some tutorials, I’ve learned that this regex will find all the above: ^(http|https)://.*$ however, it will also take http://local:1000;http://invalid http://khttp://as a single string when it shouldn’t take it at all. I understand that my expression isn’t written to
What’s the difference between a Future and a Promise?
What’s the difference between Future and Promise? They both act like a placeholder for future results, but where is the main difference?