How to access the command line arguments in Ruby? In your Ruby programs, you can access any command-line arguments passed by the shell with the ARGVspecial variable. ARGVis an Array variable which holds, as strings, each argument passed by the shell. This program iterates over the ARGVarrayand prints out its contents: #!/usr/bin/env ruby ARGV.each do|a| […]
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How do I make my own calendar app?
How do I make my own calendar app? As for APIs, the most useful are Google Calendar API and Apple EventKit. Both of them offer various opportunities to add and manage events….If you want to create a calendar app for Android, there are the following libraries: Cosmo Calendar. Event Calendar. SlyCalendarView. AgendaCalenderView. CustomizableCalendar. What is […]
What is the origin of a nestedservletexception?
What is the origin of a nestedservletexception? People do that for multiple reasons (some of them mentioned here ). As you can see in the stack trace the root exception is a nullpointer exception. So basically your NestedServletException is nothing but a NullpointerException that is caught & thrown again at some point, but wrapped up […]
How do you find special characters in Lucene?
How do you find special characters in Lucene? Lucene supports single and multiple character wildcard searches. To perform a single character wildcard search use the “?” symbol. To perform a multiple character wildcard search use the “*” symbol. You can also use the wildcard searches in the middle of a term. How do I find […]
How to count the number of keys in a dictionary?
How to count the number of keys in a dictionary? We can use the keys () method of the dictionary to get a list of all the keys in the dictionary and count the total number using len (). We can also pass the dictionary directly to the len () function, which returns the distinct […]
How do I get rid of the blinking cursor in input?
How do I get rid of the blinking cursor in input? Hide the cursor in a webpage using CSS and JavaScript First, select the element where cursor element need to hide. Add CSS style cursor:none to the a class. Add the class name (class name of CSS style cursor:none) to the particular element where cursor […]
How to make a spiral pattern in tie dye?
How to make a spiral pattern in tie dye? To achieve the spiral pattern, simply start by pinching your thumb and index fingers on the shirt and twisting. Twist until the folds in the shirt form a circle. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the […]