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Singleton with Arguments in Java
I was reading the Singleton article on Wikipedia and I came across this example:
20 Answers
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How to design a product table for many kinds of product where each product has many parameters
I do not have much experience in table design. My goal is to create one or more product tables that meet the requirements below:
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Determine whether JSON is a JSONObject or JSONArray
I am going to receive either a JSON Object or Array from server, but I have no idea which it will be. I need to work with the JSON, but to do so, I need to know if it is an Object or an Array.
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How to get the part of a file after the first line that matches a regular expression?
I have a file with about 1000 lines. I want the part of my file after the line which matches my grep statement.
12 Answers
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How do I create a nice-looking DMG for Mac OS X using command-line tools?
I need to create a nice installer for a Mac application. I want it to be a disk image (DMG), with a predefined size, layout and background image.
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Extract a dplyr tbl column as a vector
Is there a more succinct way to get one column of a dplyr tbl as a vector, from a tbl with database back-end (i.e. the data frame/table can't be subset directly)?
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How to convert list of key-value tuples into dictionary?
I have a list that looks like:
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What is an EJB, and what does it do?
Been trying to learn what EJB beans are, what does it mean their instances are managed in a pool, blah blah. Really can't get a good grip of them.
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What do we mean by Byte array? [closed]
Could someone please explain, I do not exactly get the concept.
3 Answers
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Using DNS to redirect to another URL with a path [closed]
I'm trying to redirect a domain to another via DNS.
15 Answers
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