hossshy

package chapter5

/**
  * Created by hoshi on 1/22/16.
  */
object MainObj2 {
  def main(args: Array[String]) {
    // a pattern match down to a PartialFunction[A,B]
    val list = List("A", 2, 3, "D")
    var tmp = list.filter(a => a match {

hossshy

package chapter5

/**
  * Created by hoshi on 1/20/16.
  */
object MainObj {
  // Basic Pattern mach
  def printNum(int:Int): Unit = {
    int match {
      case 0 => println("Zero")

hossshy

package chapter4

import java.io.{FileReader, BufferedReader}

sealed trait Expr // sealed means only the class in this source file can extend it
case class Add(left:Expr, right:Expr) extends Expr
case class Mul(left:Expr, right:Expr) extends Expr
case class Val(value:Int) extends Expr
case class Var(name:String) extends Expr

hossshy

package chapter4

/**
  * Created by hoshi on 1/15/16.
  */
object MainObj {
  val areaOfRect: (Int, Int) => Int = (width: Int, height: Int) => {
    width * height
  }
  // Same

hossshy

package chapter3.inheritance

/**
  * Created by hoshi on 1/14/16.
  */
class Vehicle(speed: Int) {
  val mph: Int = speed

  def race() = println("Racing MPH:" + speed)
}

hossshy

package chapter3

import java.util.Date

/**
  * Created by hoshi on 1/13/16.
  */
object CallByName {
  def nano() = {
    println("Getting nano")

hossshy

package chapter3

/**
  * Created by hoshi on 1/12/16.
  */
class Shape {
  def area:Double = 0.0
}

class Rectangle(val width:Double, val height:Double) extends Shape {

hossshy

    // For
    for (book <- booklist) {
      println(book)
    }
    // Using Filter
    for (book <- booklist if book.contains("Scala")) {
      println(s"Filter $book")
    }
    // Variable binding in for

hossshy

object Chapter2 {
  def main(args: Array[String]) {
    // declare functions
    def hello() = { "Hello World!" }
    println(hello)
    def hello2():String = { "Hello World2!" }
    println(hello2)
    def hello3 = "Hello World3!"
    println(hello3)

hossshy

object Print1 {
  def main(args: Array[String]) {
    for {i <- 1 to 10
         j <- 1 to 10}
      println(i * j)
  }
}