Scala SortedMap类代码示例

//设置package包名称以及导入依赖的类
package edu.knowitall.tool.conf
import scala.collection.immutable.SortedMap


class FeatureSet[T, V](val featureMap: SortedMap[String, Feature[T, V]]) {
  def this() = this(SortedMap.empty[String, Feature[T, V]])

  def apply(name: String) = featureMap(name)

  def featureNames(): Seq[String] =
    featureMap.keys.toSeq

  def numFeatures(): Int =
    featureNames.size

  def vectorize(example: T): Seq[V] =
    featureNames.map({ name =>
      val featureFunction = featureMap(name)
      featureFunction(example)
    })(scala.collection.breakOut)
}

object FeatureSet {
  val binaryClass = true

  def apply[T, V](features: Iterable[Feature[T, V]]): FeatureSet[T, V] = {
    new FeatureSet[T, V](SortedMap.empty[String, Feature[T, V]] ++
      features.map(feature => (feature.name, feature)))
  }
} 

//设置package包名称以及导入依赖的类
package au.edu.utscic.athanorserver.data

import scala.collection.immutable.SortedMap



object RhetoricalTypes {

  type LexicalNodes = SortedMap[Int,Node]
  type ConstituentTree = List[Any]
  type Dependencies = List[Dependency]

  type ParsedSentence = (LexicalNodes,ConstituentTree,Dependencies)

  case class Node(
                   id:Int,
                   POS:String,
                   surface:Option[String],
                   lemma:Option[String],
                   NER:Option[String] = None,
                   Speaker:Option[String] = None,
                   left:Option[Int] = None,
                   right:Option[Int] = None
                 )

  case class Dependency(
                         name:String,
                         governor:Int,
                         dependent:Int
                       )
} 

//设置package包名称以及导入依赖的类
package com.avsystem.scex
package compiler.xmlfriendly

import com.avsystem.scex.parsing.{Modification, PString, ShiftInfo}
import org.scalatest.FunSuite

import scala.collection.immutable.SortedMap


class PStringTest extends FunSuite {
  def test(name: String)(modifications: Modification*)
          (shiftMapping: (Int, ShiftInfo)*)(reverseShiftMapping: (Int, ShiftInfo)*): Unit = super.test(name) {
    val (actualShiftMapping, actualReverseShiftMapping) =
      PString.computeMapping(modifications.toList, Nil, Nil)

    assert(actualShiftMapping === SortedMap(shiftMapping: _*), "actual mapping")
    assert(actualReverseShiftMapping === SortedMap(reverseShiftMapping: _*), "reverse mapping")
  }

  test("no modifications test")()()()

  test("single add test")(
    Modification(0, 5))(
    0 -> ShiftInfo(0, 5, 0))(
    0 -> ShiftInfo(0, 0, 5))

  test("single remove test")(
    Modification(0, -5))(
    0 -> ShiftInfo(0, 0, 5))(
    0 -> ShiftInfo(0, 5, 0))

  test("remove+add replace test")(
    Modification(0, -5), Modification(0, 3))(
    0 -> ShiftInfo(0, 3, 5))(
    0 -> ShiftInfo(0, 5, 3))

  test("add+remove replace test")(
    Modification(0, 3), Modification(0, -5))(
    0 -> ShiftInfo(0, 3, 5))(
    0 -> ShiftInfo(0, 5, 3))

  test("consecutive remove and add test")(
    Modification(0, -5), Modification(5, 3))(
    0 -> ShiftInfo(0, 0, 5), 5 -> ShiftInfo(-5, 3, 0))(
    0 -> ShiftInfo(0, 5, 3))

  test("complex test")(
    Modification(2, 5), Modification(3, -4), Modification(10, -2), Modification(12, 4))(
    2 -> ShiftInfo(0, 5, 0), 3 -> ShiftInfo(5, 0, 4), 10 -> ShiftInfo(1, 0, 2), 12 -> ShiftInfo(-1, 4, 0))(
    2 -> ShiftInfo(0, 0, 5), 8 -> ShiftInfo(-5, 4, 0), 11 -> ShiftInfo(-1, 2, 4))
} 

//设置package包名称以及导入依赖的类
import scala.collection.immutable.SortedMap


object MapTuple {
  def main(args: Array[String]) {
    val map = Map("book" -> 10,"gun" -> 18,"ipad" -> 1000)
    for((k,v) <- map) yield (k,v*0.9)

    val scores = scala.collection.mutable.Map("scala" -> 7,"Hadoop" -> 8, "Spark" ->10 )
    val hadoopScore = scores.getOrElse("Hadoop",0)
    scores += ("R" -> 0)
    scores -= "Hadoop"

    val sortedScore = SortedMap("SCALA" -> 7, "Hadoop" -> 8, "spark" -> 10)


    val tuple = (1,2,3.14,"Rocky","Spark")
    val third = tuple._3
    //??tuple?????first,second...
    val (first,second,thirda,fourth,fifth) = tuple
    //???
    val (f1,s1,_,_,_) = tuple

    //??????????
    "Rocky Spark".partition(_.isUpper)

    val symbols = Array("[","-","]")
    val counts = Array(2,5,2)
    //????,???????Array
    val pairs = symbols.zip(counts)
    //?? [[-----]]
    for ((x,y) <- pairs) print(x*y)
  }
}