jxluoix的专栏

public class Test { private static Logger log = Logger.getLogger(Test.class); private static ScriptEngine engine; @BeforeClass public static void init() { engine = S...

import org.junit.{Before, BeforeClass, Test}import org.scalatest.junit.JUnitSuiteimport scala.util.control.{Breaks, ControlThrowable}import scala.util.control.Breaks._private class BreakCo...

> val fx1 = (x: Int) => x + 1fx1: Int => Int = $$Lambda$1059/1521946103@6764201e> fx1(1)res7: Int = 2> def fx2 = (x: Int) => x + 1fx2: Int => Int> fx2(2)res8: Int = 3> def fx3(x: I...

def swallow(log: (Object, Throwable) => Unit, action: => Unit) {  try {    action  } catch {    case e: Throwable => log(e.getMessage(), e)  }}

object CurryingTest { def summary() { println("---summary start---") println("--- summary end ---") } def details() { println("---start usage start---") println("--- st...

object CurryingTest { def summary() { println("---summary start---") println("--- summary end ---") } def details() { println("---start usage start---") println("--- st...

例子ForTest4.scalaobject ForTest4 extends App { var matrix = Array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10) for (i scalac -d classes ForTest4.scala执行>scala ForTest4246810...

例子ForTest3.scalaobject ForTest3 extends App { var matrix = Array(1, 2, 3, 4, 5) for (i scalac -d classes ForTest3.scala执行>scala ForTest312345

例子ForTest2.scalaobject ForTest2 extends App { var begin: Int = 1; var end : Int = 10; for {i scala ForTest2(2,1)(3,1)(3,2)(4,1)(4,2)(4,3)(5,1)(5,2)(5,3)(5,4)(6...

语法Expr1 ::= ‘for’ (‘(’ Enumerators ‘)’ | ‘{’ Enumerators ‘}’) {nl} [‘yield’] Expr Enumerators ::= Generator {semi Generator} Generator ::= Pattern1 ‘scala ForTest1...

> (define x    (let      ((a "this is a"))      a)) > x$22 = "this is a"

lambda    lambda在计算机编程语言中，如Lisp，Python和Ruby， λ是一个算子，用于表示匿名函数或者闭包，后跟λ演算的用法。在C#编程语言中，一个λ表达式是一个包含表达式和语句的匿名函数。非λ语言是一种基于组合逻辑的函数式编程语言，一个简单化的λ演算并不包含λ所有的内容， lambda term 一个有效的lambda表达...

import org.junit.{Before, BeforeClass, Test}import org.scalatest.junit.JUnitSuiteimport scala.util.control.{Breaks, ControlThrowable}private class BreakControl extends ControlThrowable...