That’s the hard way, and those java.util.Date setter methods have been deprecated since Java 1.1 (1997). Moreover, the whole java.util.Date class was de-facto deprecated (discommended) since introduction of java.time API in Java 8 (2014). Simply format the date using DateTimeFormatter with a pattern matching the input string (the tutorial is available here). In your specific … Read more
my_function.__name__ Using __name__ is the preferred method as it applies uniformly. Unlike func_name, it works on built-in functions as well: >>> import time >>> time.time.func_name Traceback (most recent call last): File “<stdin>”, line 1, in ? AttributeError: ‘builtin_function_or_method’ object has no attribute ‘func_name’ >>> time.time.__name__ ‘time’ Also the double underscores indicate to the reader this … Read more
If you’re using .NET 3.5 you can do this in a one-liner with LINQ: int count = source.Count(f => f == “https://stackoverflow.com/”); If you don’t want to use LINQ you can do it with: int count = source.Split(“https://stackoverflow.com/”).Length – 1; You might be surprised to learn that your original technique seems to be about 30% … Read more
Use str.join: >>> words = [‘this’, ‘is’, ‘a’, ‘sentence’] >>> ‘-‘.join(words) ‘this-is-a-sentence’ >>> ‘ ‘.join(words) ‘this is a sentence’
This is generally done with a simple user-defined function (i.e. Roll-your-own “isNumeric” function). Something like: public static boolean isNumeric(String str) { try { Double.parseDouble(str); return true; } catch(NumberFormatException e){ return false; } } However, if you’re calling this function a lot, and you expect many of the checks to fail due to not being a … Read more
.NET 4+ IList<string> strings = new List<string>{“1″,”2″,”testing”}; string joined = string.Join(“,”, strings); Detail & Pre .Net 4.0 Solutions IEnumerable<string> can be converted into a string array very easily with LINQ (.NET 3.5): IEnumerable<string> strings = …; string[] array = strings.ToArray(); It’s easy enough to write the equivalent helper method if you need to: public static … Read more
Use double braces {{ or }} so your code becomes: sb.AppendLine(String.Format(“public {0} {1} {{ get; private set; }}”, prop.Type, prop.Name)); // For prop.Type of “Foo” and prop.Name of “Bar”, the result would be: // public Foo Bar { get; private set; }
This snippet on the Advanced Bash Scripting Guide says: # The == comparison operator behaves differently within a double-brackets # test than within single brackets. [[ $a == z* ]] # True if $a starts with a “z” (wildcard matching). [[ $a == “z*” ]] # True if $a is equal to z* (literal matching). … Read more
If you just want to pass a std::string to a function that needs const char* you can use std::string str; const char * c = str.c_str(); If you want to get a writable copy, like char *, you can do that with this: std::string str; char * writable = new char[str.size() + 1]; std::copy(str.begin(), str.end(), … Read more
Switch statements with String cases have been implemented in Java SE 7, at least 16 years after they were first requested. A clear reason for the delay was not provided, but it likely had to do with performance. Implementation in JDK 7 The feature has now been implemented in javac with a “de-sugaring” process; a … Read more