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Java Pass Method as Parameter

...void execute(Object data) { System.out.println(data.toString()); } } public static void callCommand(Command command, Object data) { command.execute(data); } public static void main(String... args) { callCommand(new PrintCom...
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How do I make a checkbox required on an ASP.NET form?

...trolToValidate.Length == 0) throw new System.Web.HttpException(string.Format("The ControlToValidate property of '{0}' is required.", this.ID)); if (this.CheckBoxToValidate == null) throw new System.Web.HttpException(string.Format("This control can only validate Check...
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How to write loop in a Makefile?

...r shell operations nor a need for the developer to schpeel out a hardcoded string of numeric values. the $(eval ....) builtin macro is your friend. Or can be at least. define ITERATE $(eval ITERATE_COUNT :=)\ $(if $(filter ${1},0),,\ $(call ITERATE_DO,${1},${2})\ ) endef define ITERATE_DO $(if...
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Java 8 NullPointerException in Collectors.toMap

...esult, thus the lambda for your case would be () -> new TreeMap<>(String.CASE_INSENSITIVE_ORDER) to create a case insensitive String keyed TreeMap. – Brett Ryan Oct 19 '15 at 12:58 ...
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Unit Testing AngularJS directive with templateUrl

... we are going to have a big piece of html that we are going to inject as a string into the template cache then what are we gonna do when we change the html on the front end? Change the html in the test as well? IMO that is an unsustainable answer and the reason we went with using the template over t...
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How do I add more members to my ENUM-type column in MySQL?

... enum is just a fancy integer, with a string representation. adding items to the end is fine, since you just add meaning old values. but changing the order / removing enums will make those numbers undefined. (eg. 1=>italy, 2=>germany), then extending will b...
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How to validate an email address using a regular expression?

...may not be exactly what you want to achieve. For example, it accepts these strings as valid e-mail addresses: "user1@hotmail.com; user2@gmail.com" "user1@hotmail.com; user2@gmail.com; user3@company.com" "User Display Name user3@company.com" "user4 @company.com" In some of these cases, only the l...
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How to display hidden characters by default (ZERO WIDTH SPACE ie. &#8203)

...pt to make very well formatted HTML content for migration into WordPress: $string = preg_replace( '/[^\x00-\x7F]/', null, $string ); htmlspecialchars_decode( htmlentities( html_entity_decode( $string ) ) ); – aequalsb Feb 21 '17 at 13:59 ...
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Twitter API returns error 215, Bad Authentication Data

...t; $consumer_key, 'oauth_token' => $token, 'oauth_nonce' => (string)mt_rand(), // a stronger nonce is recommended 'oauth_timestamp' => time(), 'oauth_signature_method' => 'HMAC-SHA1', 'oauth_version' => '1.0' ); $oauth = array_map("rawurlencode", $oauth); // must ...
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How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?

...ass LayoutInjecterAttribute : ActionFilterAttribute { private readonly string _masterName; public LayoutInjecterAttribute(string masterName) { _masterName = masterName; } public override void OnActionExecuted(ActionExecutedContext filterContext) { base.OnActi...