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Didn't Java once have a Pair class? [duplicate]

... If you happen to be developing for Android.. it has Pair also – Tim Mar 20 '15 at 17:44 2 ...
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Extract a substring from a string in Ruby using a regular expression

...string>"[/.*<([^>]*)/,1] => "substring" No need to use scan, if we need only one result. No need to use Python's match, when we have Ruby's String[regexp,#]. See: http://ruby-doc.org/core/String.html#method-i-5B-5D Note: str[regexp, capture] → new_str or nil ...
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What is the difference between javac and the Eclipse compiler?

...javac program is wrapped around, or is it a separate compiler altogether? If the latter, why would they reinvent the wheel? ...
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C++ include and import difference

What is the difference between #include and #import in C++? 5 Answers 5 ...
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How To Set Text In An EditText

... If you check the docs for EditText, you'll find a setText() method. It takes in a String and a TextView.BufferType. For example: EditText editText = (EditText)findViewById(R.id.edit_text); editText.setText("Google is your fr...
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Convert NSURL to local file path

..., unescaped with the stringByReplacingPercentEscapesUsingEncoding: method. If the receiver does not conform to RFC 1808, returns nil. If this URL object contains a file URL (as determined with isFileURL), the return value of this method is suitable for input into methods of NSFileManager or NSP...
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JsonMappingException: out of START_ARRAY token

...e problem I had, but it crazy since in jackson 2.6.3v there was a totally different crazy error, and with 2.9.8v everything worked. Damn it, so these serialization errors are so annoying. – brebDev Mar 13 '19 at 14:49 ...
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PostgreSQL return result set as JSON array?

...then converts the array to a JSON array. I wasn't able to discern any significant performance difference between the two. Object of lists This section describes how to generate a JSON object, with each key being a column in the table and each value being an array of the values of the column. It's...
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Most efficient way to convert an HTMLCollection to an Array

...st. A performance comparison for the mentioned methods: http://jsben.ch/h2IFA share | improve this answer | follow | ...
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How to declare a variable in MySQL?

... access any user-defined variable without declaring it or initializing it. If you refer to a variable that has not been initialized, it has a value of NULL and a type of string. SELECT @var_any_var_name You can initialize a variable using SET or SELECT statement: SET @start = 1, @finish = 10; ...