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Read error response body in Java

...bufferedReader.read()) != -1) { sb.append((char) cp); } bufferedReader.close(); } in.close(); } else { /* error fro...
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Why should casting be avoided? [closed]

... compiler won't warn you about those potential problems. Just for example, char a=(char)123456;. The exact result of this implementation defined (depends on the size and signedness of char), and except in rather strange situations, probably isn't useful. C casts also vary in whether they're somethin...
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Avoiding if statement inside a for loop?

... f(index++, e); } int main() { using namespace std; set<char> s{'b', 'a', 'c'}; // indices starting at 1 instead of 0 for_each_indexed(s, [](size_t i, char e) { cout<<i<<'\t'<<e<<'\n'; }, 1u); cout << "-----" << endl; vecto...
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How to convert an Int to a String of a given length with leading zeros to align?

How can I convert an Int to a 7-character long String , so that 123 is turned into "0000123" ? 7 Answers ...
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In what cases do I use malloc and/or new?

... Always use new. If you need a big chunk of data just do something like: char *pBuffer = new char[1024]; Be careful though this is not correct: //This is incorrect - may delete only one element, may corrupt the heap, or worse... delete pBuffer; Instead you should do this when deleting an arra...
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How to profile a bash shell script slow startup?

...n of any Bash script you'd like tracing to stop). The \011 is an octal tab character. You should get a trace log in /tmp/bashstart.PID.log that shows the seconds.nanoseconds timestamp of each command that was executed. The difference from one time to the next is the amount of time that the interven...
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Quickly reading very large tables as dataframes

...ontain any column headers or row names, and does not have any pathological characters that I have to worry about. 11 Answer...
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Simple Digit Recognition OCR in OpenCV-Python

...To(tmp2,CV_32FC1); float p=knn.find_nearest(tmp2.reshape(1,1), 1); char name[4]; sprintf(name,"%d",(int)p); putText( dst,name,Point(r.x,r.y+r.height) ,0,1, Scalar(0, 255, 0), 2, 8 ); } imshow("src",src); imshow("dst",dst); imwrite("dest.jpg",dst); waitKey(); Result In the result ...
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git ignore vim temporary files

...ension to find another file that can be used. * First decrement the last char: ".swo", ".swn", etc. * If that still isn't enough decrement the last but one char: ".svz" * Can happen when editing many "No Name" buffers. */ if (fname[n - 1] == 'a') /* ".s?a" */ { if (fname[n - 2]...
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How do I find the width & height of a terminal window?

... wrapper for that. E.g in Perl you can use Term::Size: use Term::Size qw( chars ); my ( $columns, $rows ) = chars \*STDOUT; share | improve this answer |