I got the email notification when the server load is high: Your Server (helloacm) Load Alert Needs Attention! 11.54 110.63 102.98 3/391 5989 and I checked the apache access …
Let’s consider this XML data, and you want to add an offset to all Z coordinate. <data> <point> <x> 1 </x> <y> 2 </y> <z> 3 </z> </point> <point> …
IP Addresses consist of two kinds. The IPv4 and IPv6. The IPv4 is 32-bit that contains 4 bytes. For example, X.Y.Z.U where four digits (0 to 255) are separated …
Why are catching any general exceptions bad? They are just to suppress run time errors which may cause some more serious and worse errors later. try { } catch …
Regular Expressions (Regex) are very powerful and useful tool to describe patterns. https://leetcode.com/problems/valid-phone-numbers/ Given a text file file.txt that contains list of phone numbers (one per line), write a …
