Java

  • 18th February 2018

Some are more equal than others

"And to avoid the tedious repetition of these words: is equal to: I will set as I do often in work use, a pair of parallels, or Gemowe lines of one length, thus: =, because no 2 things, can be more equal." -- Robert Recorde, The Whetstone of Witte (1557)

public class Equality {
	public Equality() {
		Integer a1 = 100, a2 = 100;
		Integer b1 = 200, b2 = 200;
		if (a1 == a2) System.out.println("a1 == a2");
		if (b1 == b2) System.out.println("b1 == b2");
	}
	public static void main(String[] args) {new Equality(); }
}
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  • 7th October 2017

Regex prime checker

This Java snippet uses a regular expression for something way different than they were designed for: a primality check.

public static boolean prime(int n) {
    return !new String(new char[n]).matches(".?|(..+?)\\1+");
}
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