大约有 16,000 项符合查询结果(耗时:0.0310秒) [XML]

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Split Java String by New Line

...'m trying to split text in a JTextArea using a regex to split the String by \n However, this does not work and I also tried by \r\n|\r|n and many other combination of regexes. Code: ...
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Different between parseInt() and valueOf() in java?

...nteger.parseInt(String). However, valueOf(String) returns a new Integer() object whereas parseInt(String) returns a primitive int. If you want to enjoy the potential caching benefits of Integer.valueOf(int), you could also use this eyesore: Integer k = Integer.valueOf(Integer.parseInt("123")) N...
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What are the differences between vector and list data types in R?

What are the main differences between vector and list data types in R? What are the advantages or disadvantages of using (or not) these two data types? ...
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Does a `+` in a URL scheme/host/path represent a space?

... Percent encoding in the path section of a URL is expected to be decoded, but any + characters in the path component is expected to be treated literally. To be explicit: + is only a special character in the query component. ...
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parseInt vs unary plus, when to use which?

What are the differences between this line: 5 Answers 5 ...
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What is the difference between procedural programming and functional programming? [closed]

I've read the Wikipedia articles for both procedural programming and functional programming , but I'm still slightly confused. Could someone boil it down to the core? ...
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test a file upload using rspec - rails

... You can use fixture_file_upload method to test file uploading: Put your test file in "{Rails.root}/spec/fixtures/files" directory before :each do @file = fixture_file_upload('files/test_lic.xml', 'text/xml') end it "can upload a license" do post :uploadLicense, :upload => @fi...
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Copy tables from one database to another in SQL Server

I have a database called foo and a database called bar. I have a table in foo called tblFoobar that I want to move (data and all) to database bar from database foo. What is the SQL statement to do this? ...
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pandas DataFrame: replace nan values with average of columns

I've got a pandas DataFrame filled mostly with real numbers, but there is a few nan values in it as well. 10 Answers ...
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Passing a method as a parameter in Ruby

I am trying to mess around a little bit with Ruby. Therefor I try to implement the algorithms (given in Python) from the book "Programming Collective Intelligence" Ruby. ...