for (BlockchainIterator iterator = this.getBlockchainIterator(); iterator.hashNext(); ) { Block block = iterator.next(); for (Transaction tx : block.getTransactions()) { if (Arrays.equals(tx.getTxId(), txId)) { return tx; } } } throw new Exception("ERROR: Can not found tx by...
you will find that the performance of the two is very different. The following are the test results. It can be found that the performance of using object pooling is about 5 times that of the non-pooling
In medium-large Spring projects, these cycles might be 10+ beans in size and difficult to find. Moving to constructor injection is seen as a best-practice for many reasons but one is that it doesn’t allow for circular dependencies to exist. In field/setter-injection, Spring can first ...
"Hello World"is called aStringliteral. In a Java program, everything between two double quotes is aStringliteral. Literals are implemented as instances of String class. As you can see, you can conveniently initialize aStringObject like a primitive type, e.gint i = 0;. There is no need t...
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In essence it can be implemented the same way just it can’t set null value when removing and instead it should be some special value DELETED. We can not set null values because then search would start working incorrectly and some values might be lost because chain of probes could be ...
public class TalkServer{ public static void main(String args[]) { try{ ServerSocket server=null; try{ server=new ServerSocket(4700); //创建一个ServerSocket在端口4700监听客户请求 }catch(Exception e) { System.out.println("can not listen to:"+e); ...
frmMain 1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; ...
* @created on 2019年5月23日,下午8:01:46*/publicclassFpTreeNode<T>{/*** 当前节点频繁度*/privatelongcount = 0;/*** 节点内容值*/privateT nodeVal;/*** 父类节点*/privateFpTreeNode<T> parent =null;/*** 当前节点子节点*/privateList<FpTreeNode<T>> children =null;/*** helper*/priv...
{ // /* allocate output buffer */ // /* XXX: API change will be done */ // /* buffers passed into lav* can be allocated any way you prefer, // as long as they're aligned enough for the architecture, and // they're freed appropriately (such as using av_free for buffers //...