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How to copy a java.util.List into another java.util.List
I have a List<SomeBean> that is populated from a Web Service. I want to copy/clone the contents of that list into an empty list of the same type. A Google search for copying a list suggested me to use Collections.copy() method. In all the examples I saw, the destination list was supposed t...
Static method behavior in multi-threaded environment in java
There's a simple stupid question that bother me and make several arguments in my mind.
I want to throw out all the doubts about below questions.
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JPA EntityManager: Why use persist() over merge()?
EntityManager.merge() can insert new objects and update existing ones.
15 Answers
15
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What happens if you don't commit a transaction to a database (say, SQL Server)?
Suppose I have a query:
9 Answers
9
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Why is printing to stdout so slow? Can it be sped up?
I've always been amazed/frustrated with how long it takes to simply output to the terminal with a print statement. After some recent painfully slow logging I decided to look into it and was quite surprised to find that almost all the time spent is waiting for the terminal to process the results.
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Difference between open and codecs.open in Python
There are two ways to open a text file in Python:
8 Answers
8
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Replace a newline in TSQL
I would like to replace (or remove) a newline character in a TSQL-string.
Any Ideas?
12 Answers
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Is there a better Windows Console Window? [closed]
I find working on the command line in Windows frustrating, primarily because the console window is wretched to use compared to terminal applications on linux and OS X such as "rxvt", "xterm", or "Terminal". Major complaints:
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How to apply a patch generated with git format-patch?
I have 2 git local repositories both pointing to the same remote repository.
6 Answers
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How are everyday machines programmed?
How are everyday machines (not so much computers and mobile devices as appliances, digital watches, etc) programmed? What kind of code goes into the programming of a Coca-Cola vending machine? How does my coffee maker accept a pre-programmed time and begin brewing a pot of coffee hours later, when t...