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原文地址: http://www.ptbird.cn/2016/07/19/scala-chuji-demo-23/

There I am,in the world more exciting!

by postbird

www.ptbird.cn



package com.ptbird.scala import java.awt.event.{ActionEvent, ActionListener} import javax.swing.{JButton, JFrame} /** * Created by postbird on 2016/5/26. */ object SAMTest { def main(args: Array[String]): Unit = { var data = 0; val frame = new JFrame("SAM test") val jbutton = new JButton("SAM Test") // jbutton.addActionListener(new ActionListener { // override def actionPerformed(e: ActionEvent): Unit = { // data += 1 // println(data) // } // }) /** **********************************隐式转换 通过高级函数传递参数 *******************************************/ implicit def convertedAction(action:(ActionEvent)=>Unit)={ new ActionListener { override def actionPerformed(event: ActionEvent): Unit = { action(event) } } } jbutton.addActionListener((event:ActionEvent)=>{data+=1;println(data)}) frame.setContentPane(jbutton) frame.pack() frame.setVisible(true) } }