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Eclipse error: “The import XXX cannot be resolved”
...f you import a maven project as "Java project" then this problem is occur. Convert project to maven project and update as you said then the problem is gone.
– kodmanyagha
Jun 26 '18 at 22:53
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character showing up in files. How to remove them?
...but a BOM with the bytes reversed. It could happen on any platform, if you convert UTF-16 to UTF-8 and get the byte-order wrong (even though the purpose of the BOM is to prevent that error!)
– tripleee
Nov 24 '14 at 16:38
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Changing column names of a data frame
...e called). The lesson here is, "don't write your code in an 'editor' that converts quotes to smart-quotes".
names(newprice)[1]<-paste(“premium”) # error
names(newprice)[1]<-paste("premium") # works
Also, you don't need paste("premium") (the call to paste is redundant) and it's a good...
MongoDB inserts float when trying to insert integer
How do I get Mongo to insert an integer?
4 Answers
4
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How are booleans formatted in Strings in Python?
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>>> print "%r, %r" % (True, False)
True, False
This is not specific to boolean values - %r calls the __repr__ method on the argument. %s (for str) should also work.
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What does map(&:name) mean in Ruby?
...oo method, and used the & to signify that it has a to_proc method that converts it into a Proc.
This is very useful when you want to do things point-free style. An example is to check if there is any string in an array that is equal to the string "foo". There is the conventional way:
["bar", "...
Can a class member function template be virtual?
...virtual member function templates.
However, there are a few powerful and interesting techniques stemming from combining polymorphism and templates, notably so-called type erasure.
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AlertDialog.Builder with custom layout and EditText; cannot access view
...ated by Inflater to update UI components else you can directly use setView(int layourResId) method of AlertDialog.Builder class, which is available from API 21 and onwards.
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Insert space before capital letters
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Here is what i ended up using to convert a string to a title case, based on a few of the answers here:
str = str
.replace(/(_|-)/g, ' ')
.trim()
.replace(/\w\S*/g, function(str) {
return str.charAt(0).toUpperCase() + str.substr(1)
})
.repla...
Objective-C: difference between id and void *
... only warn if the method being called has not been declared in any of the @interface declarations seen by the compiler.
Thus, one should never refer to an object as a void *. Similarly, one should avoid using an id typed variable to refer to an object. Use the most specific class typed referen...