示例
定义函数式接口如下:
@FunctionalInterface
public interface IProcessor<T> {
void process(T t);
}
使用 lambda：
public class Main {
public static void main(String[] args) {
IProcessor<Long> processor = aLong -> {
System.out.println(aLong);
};
processor.process(123L);
}
}
使用 lambda + 函数引用：
public class Main {
public static void main(String[] args) {
IProcessor<Long> processor = System.out::println;
processor.process(123L);
}
}