def using[T <: { def close() }, TR<:Any] (resource:T) (func:T=>TR){  

 try{  

        func(resource)    

}catch{ // catch也可以不

class Duck {

def quack = println( " duck quack" );

def walk = println( " duck walk" );

}

class Platypus {

def quack = println( "Platypus quack" )

def walk = println( "Platypus walk" );

}

def actAsDuck( a : { def quack; def walk } ) = {

a.quack

import scala.collection.JavaConverters._
import scala.collection.JavaConverters._
val list:java.util.List[java.util.Map[String,Object]]=new java.util.ArrayList[java.util.Map[String,Object]]()
val map1:java.util.Map[String,AnyRef]=new java.util.HashMap[String,AnyRef]()
map1.put("payout",3.asInstanceOf[AnyRef])
list.add(map1)
val map2:java.util.Map[String,AnyRef]=new java.util.HashMap[String,AnyRef]()

http://scalatest.org/getting_started_with_junit_4

If you want to write JUnit 4 tests in Scala that you run with JUnit, you can enjoy more concise code by using ScalaTest's assertions and/or matchers. To use assertions, mix org.scalatest.junit.AssertionsForJUnit into your test class:

import

Google 推出 C++ Go Java Scala的基准性能测试，结果依次是：C++ Go Scala Java ，报告显示，C++提供了最快的运行性能，报告也认为性能微调努力付出是高昂的。

Go没有这些微调的限制，但是它太年轻，Go编译时间快于Java Scala，Java Scala是编译到Java字节码，而C++和Go编译到机器码，该报告并没有测试并发性能。

Scala性能要快于Java，报告推出时也恰逢Scala Day，所以对Scala有特别意义。

报告地址：

http://www.oschina.net/p/dbutils

‍Scala的JDBC封装包 Scweery

‍http://www.oschina.net/p/scweery

http://www.oschina.net/p/scalaquery

‍

‍Scala JSON

‍http://www.solopro.cn/index.php/archives/319

EJB

Now let’s look at BookEjb.java:

package com.sourceallies.ejb;
 
import java.util.*;
 

Last weekend while pondering the question “Is Scala ready for the enterprise?” I decided to write a simple Java EE 6 app entirely in Scala, without using any Java. I had three main reasons for doing this: one was just to see