随时记

 

（1）https://docs.oracle.com/javase/specs/jls/se7/html/index.html

（2）http://javaparser.org

（3）http://iteratrlearning.com/java/generics/2016/05/12/intersection-types-java-generics.html

（4）https://ruslanspivak.com/archives.html

（5）谁还没遇上过NoClassDefFoundError咋地——浅谈字节码生成与热部署 

https://www.cnblogs.com/bethunebtj/p/9066060.html

 

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Target;

enum Color{BLUE,GREEN;}

@Target(ElementType.LOCAL_VARIABLE)
@Documented
@interface FruitColor {
    Color fruitColor() default Color.GREEN;
}

public class Test10{
	public void test(){		
		@FruitColor final String appleName;
	}
}

说明final关键字与注解可同时出现，也可以两者选其一

 

 

static{
		{
			int a = 1;
		}
		static{ // 出错
			int a = 2;
		} 
	}
	{
		{
			int a = 3;
		}
		static{ // 出错
			int a = 4;
		}
	}
	
	
	public void m1(){
		{
			{
				int a = 5;
			}
		}
		static{} // 出错
	}

 

转载于:https://www.cnblogs.com/extjs4/p/7741832.html