Lambda expressions in Java provide a succinct way to implement functional interfaces, such asConsumer, by defining their behavior inline. They are constructed using the->operator, which separates the parameters from the body of the expression, enhancing code readability and reducing boilerplate. Main....
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public inline fun <T> Iterable<T>.forEach(action: (T) -> Unit): Unit { for (element in this) action(element) } 1. 2. 3. forEach 源码很简单,就是循环执行 action 这个函数,这个 action 就是我们传入的 lambda,所有我们 return@forEach 只会影响一次,整体的 for 循环不会被终止的。 return@...
inline public class Point { public int x; public int y; public Point(int x, int y) { this.x = x; this.y = y; } } 值类型的内存布局长这样: 看上去值类型跟基础类型很像(某些小伙伴要说了,这跟我之前干的用两个int[]来代替Point[]的方式有什么区别?),不同之处在于可以将其看做一种可以...
import java.util.Map;publicclassHelloFreeMarker {publicstaticvoidmain(String[] args) throws Exception{//1.创建配置类Configuration configuration =newConfiguration(Configuration.getVersion());//2.设置模板所在的目录configuration.setDirectoryForTemplateLoading(newFile("/Users/zhenghan/Projects/FreeMarker_test/src...
index 索引 (for database)implement 实现implementation 实现、实现品implicit 隐式import 导入increment operator 增加操作符infinite loop 无限循环infinite recursive 无限递归information 信息infrastructure 基础设施inheritance 继承、继承机制inline 内联inline expansion 内联展开initialization 初始化...
dontinline Prevent inlining of the specified method. exclude Exclude the specified method from compilation. help Print a help message for the -XX:CompileCommand option. inline Attempt to inline the specified method. log Exclude compilation logging (with the -XX:+LogCompilation option) for all method...
FinallyTest::main @ 36 (93 bytes) @ 46 java.lang.Integer::valueOf (32 bytes) inline ...
inline fun IntArray.forEatch(action:(Int)->Unit):Unit{ for(element in this) action(element) } //传入函数,再把函数作为参数继续传递 inline fun <R> IntArray.map(transform : (Int) -> R):List<R>{ return mapTo(ArrayList<R>(size),transform) ...
JVM之后调用这里就不再需要重新解析,直接绑定到这个CallSite上,调用对应的targetMethodHandle,并能够进行inline等调用优化 第一行invokedynamic后面有两个参数,第二个0没有意义固定为0 第一个参数是#2,指向的是常量池中类型为CONSTANT_InvokeDynamic_info的常量。