标签:eth ack auto pre ati ext span lambda ide
JDK1.8 引入了函数式编程lambda,使编程变得简洁.
可以用lambda表达式替代匿名函数
package javaJVM; import java.awt.Event; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; public class Test1 extends JFrame{ private JButton jb; public Test1() { this.setBounds(200,200,400,300); this.setTitle("lambda测试"); jb = new JButton("click"); this.add(jb); this.setVisible(true); /*jb.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub System.out.println("click"); } });*/ jb.addActionListener(Event -> System.out.println("hello")); this.setDefaultCloseOperation(EXIT_ON_CLOSE); } public static void main(String[] args) { new Test1(); } }
package javaJVM;
import java.awt.Event;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
public class Test1 extends JFrame{
private JButton jb;
public Test1() {
this.setBounds(200,200,400,300);
this.setTitle("lambda测试");
jb = new JButton("click");
this.add(jb);
this.setVisible(true);
/*jb.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
System.out.println("click");
}
});*/
jb.addActionListener(Event -> System.out.println("hello"));
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public static void main(String[] args) {
new Test1();
}
}
标签:eth ack auto pre ati ext span lambda ide
原文地址:https://www.cnblogs.com/wcgstudy/p/11216480.html