I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affect the results. Is this really the case? When are floats and doubles interchangeable? What are the d...

... when Hibernate tries to retrieve some meta information from the database. If this annoys you, you can disable it: hibernate.temp.use_jdbc_metadata_defaults false share | improve this answer ...

...pdate 2011: It cannot be said with certainty which method is faster. The differences between the browsers is enormous. While in Chrome 10 indexOf seems to be faster, in Safari 5, indexOf is clearly slower than any other method. You have to see and try for your self. It depends on your needs. For e...

If you wanted to generate a pseudorandom alphanumeric string using T-SQL, how would you do it? How would you exclude characters like dollar signs, dashes, and slashes from it? ...

...s goal? No. In order to convert an image to a byte array you have to specify an image format - just as you have to specify an encoding when you convert text to a byte array. If you're worried about compression artefacts, pick a lossless format. If you're worried about CPU resources, pick a format...

...it. But, I would like to share one example, which I only thought of today. If I told you to cut a piece of paper with dimensions 5m by 5m, then surely you would do that. But suppose I ask you to cut 1000 pieces of paper of the same dimensions. In this case, you won't do the measuring 1000 times; obv...

...s various pieces of information about the Android OS a system is running. If you care about all versions possible (back to original Android version), as in minSdkVersion is set to anything less than 4, then you will have to use android.os.Build.VERSION.SDK, which is a String that can be converted t...

...ear when it should be True or False. Some users might assume they are True if they have non-zero length, like a Python list. Others might desire for it to be True only if all its elements are True. Others might want it to be True if any of its elements are True. Because there are so many conflicti...

.... The first line of a commit message is meant to be a short description. If you cannot make it in a single line you can use several, but git considers everything before the first empty line to be the "short description". oneline prints the whole short description, so all your 3 rows. ...

... temp = [line[:-1] for line in file] Note: this last solution only works if the file ends with a newline, otherwise the last line will lose a character. This assumption is true in most cases (especially for files created by text editors, which often do add an ending newline anyway). If you want ...