小编And*_*ndy的帖子

为什么这段代码不能编译？无法完全掌握 java 方法参考的细微差别:(

public class TestClass {

    static void println() {}
    
   public static void main(String[] args) {

        Runnable r1 = () -> System.out::println; // compilation error
        Runnable r2 = () -> TestClass::println;  // compilation error
        Runnable r2 = () -> System.out.println("Hello World");  // This is fine !!

    }
}