sgabber

sgabber / phoneKeyboardToString.java

Created February 25, 2021 13:50

Converts phone digits to string

	import java.util.HashMap;

	class Scratch {
	public static void main(String[] args) {

	String s = "444 2 6 444 66 33 888 444 8 2 22 555 33";

	HashMap<String, String> numToLetters = new HashMap<>();
	numToLetters.put("2", "abc");
	numToLetters.put("3", "def");

sgabber / UsefulRegexes.txt

Created October 4, 2019 09:12

	From camelcase to db column name

	find
	/([a-z_])([A-Z])(.?$)/

	replace with
	/\1_\l\2\3/

	repeatedly

sgabber / stringPrefixPostfixOperators.scala

Created September 26, 2019 09:42

testing prefix and postfix operators or just messing with strings

	println("messing with strings")

	implicit class Screamer(s:String) {
	def ! = s.toUpperCase
	def !(o:String) = s.toUpperCase + o.toLowerCase
	def unary_! = s.toLowerCase
	}


	println("ciao"!)

sgabber / RepeatTest.scala

Last active September 20, 2019 08:22

implementing the repeat until (like do while) only with basic scala constructs

	object RepeatTest {

	class RepeatHelper(cmd: => Unit) {
	def until(cond: => Boolean): Unit = if (cond) repeat(cmd)
	}

	def repeat(cmd: => Unit): RepeatHelper = {
	cmd
	new RepeatHelper(cmd)
	}