万物之中,希望至美

Java Integer 装箱缓存详解

一段简单代码: Integer i1 = 56; Integer i2 = 56; Integer i3 = 129; Integer i4 = 129; System.out.println(i1 == i2); System.out.p...
Technology Java

Java Annotation

元注解 @Target 定义 Annotation 能够被应用于源码的哪些位置: 类或者接口:ElementType.TYPE 字段:ElementType.FIELD 方法:ElementType.METHOD 构造方法:ElementT...
Technology Java

Powered by Typlog. Originally designed by Caicai.