我读Java 8 book它带有一个样品我重现.. @FunctionalInterface
public interface Action{public void perform();}
一个实施者 public final class ActionImpl implements Action
{
public ActionImpl()
{
System.
为什么这不起作用?我得到编译器错误“不能静态引用非静态方法打印...” public class Chapter3 {
public void print(String s) {
System.out.println(s);
}
public static void main(String[] args) {
Arrays.asList("a"