Sidharth Kuruvila sidharthkuruvila

sidharthkuruvila / TextToImage.scala

Created December 17, 2010 17:59

Convert some text to an image

	import java.awt.image.BufferedImage
	import javax.imageio.ImageIO
	import java.awt.Color
	import java.io.File
	import java.awt.Rectangle
	import java.awt.font.LineBreakMeasurer
	import java.awt.Graphics2D
	import java.text.AttributedString

	import io.Source

sidharthkuruvila / NTripleTraversable.scala

Created July 19, 2011 17:00

Scala Traversable for jena's TurtleParser

	import com.hp.hpl.jena.{ n3, graph }
	import n3.turtle.TurtleEventHandler
	import n3.turtle.parser.TurtleParser
	import graph.Triple

	import java.io.Reader

	/**
	* Wrapper to convert a TurtleParser into a Traversable
	*/

sidharthkuruvila / gist:1160196

Created August 21, 2011 05:42

Wrap method calls that return null in Option

	def canReturnNull() = "hello world"
	println(Option(canReturnNull) getOrElse "I'm saying nothing")

	//Prints: hello world

	def canReturnNull() = null
	println(Option(canReturnNull) getOrElse "I'm saying nothing")

	//Prints: I'm saying nothing

sidharthkuruvila / gist:1160504

Created August 21, 2011 11:43

Handling null in java

sidharthkuruvila / gist:1161848

Created August 22, 2011 07:22

Prepend a nullable value to a linked list

	Integer i = canReturnNull();
	LinkedList<Integer> l = new LinkedList<Integer>(Arrays.asList(2,3,4));
	if(i != null){
	l.addFirst(i);
	}

sidharthkuruvila / gist:1161849

Created August 22, 2011 07:23

An Option in scala can prepended to a List using the ++: concatenation operator.

sidharthkuruvila / gist:1164529

Created August 23, 2011 07:08

Convert an array of chars into a String

	char[] chars = {72, 101, 108, 108, 111};
	String s = new String(chars);

sidharthkuruvila / gist:1164534

Created August 23, 2011 07:10

Convert a list of Ints into a list of Chars

	println(List(72, 101, 108, 108, 111).map(_.toChar))
	//prints: List(H, e, l, l, o)

sidharthkuruvila / gist:1164536

Created August 23, 2011 07:11

Convert a List of Ints into a String

	println(List(72, 101, 108, 108, 111).map(_.toChar)(collection.breakOut))
	//prints: hello

sidharthkuruvila / gist:1164540

Created August 23, 2011 07:12

Convert a List of Ints into an Array of Chars

	val a:Array[Char] = List(72, 101, 108, 108, 111).map(_.toChar)(collection.breakOut)
	println(a)
	//prints: [C@957cec