stringbuilder

Maybe I want to use a StringBuilder to get better performance .

也许我想使用一个StringBuilder来获得更好的性能。

As can be seen , StringBuilder performance remained constant throughout exercise .

正如我们所看到的，StringBuilder的性能可以保持在一个不变的吞吐量水平上。

I also wanted to see if the optimizations would have any effect on StringBuilder performance .

我也想了解一下各种优化是否真的能够影响StringBuilder的性能。

Make sure you use a StringBuilder and not individual string objects that get concatenated .

确保使用StringBuilder，而不是把一些独立字符串对象连接在一起。

You can obviously just use a StringBuilder or something similar to create an XML string .

显然，您可以只使用一个StringBuilder来创建XML字符串。

The purpose of using the unsynchronized StringBuilder was to provide a baseline measurement of performance .

之所以使用非同步的StringBuilder，是为了提供一个测量性能的基线。

First off , creating a StringBuilder means copying the contents of the String , an O ( n ) operation .

但是，创建一个StringBuilder也就意味着拷贝String的内容，一个O（n）的操作。

Isn 't it time for some recycling , i.e.reusing the same global StringBuilder for every email received ?

这不是用于循环的时间吗，从新使用一个全局性的Stringbuilders为每一个收到的email？

In this shot the large frame in the upper right shows the disassembly of the timing wrapper method added to the StringBuilder class .

在这个快照中，右上角的大帧显示了添加到StringBuilder类中的计时包装器方法的分解。

StringBuilder ; one is immutable and changes to it cause the creation of a new copy , the other allows for in-place modification .

一个是不可变的，当需要修改的时候它会创建一个新的副本，而另一个则允许直接在其上进行修改。

Note the StringBuilder and the appending of data , used because a particular data element can be processed across multiple reads on the InputSource .

注意，使用StringBuilder和附加数据是因为一个特定数据在InputSource上能通过多个读取来进行处理。

Does it make sense to use ropes to compute the value of x , rather than a StringBuilder , which is what the compiler generates by default ?

用rope代替编译器默认生成的StringBuilder来计算x的值是否有意义？

Given the single threaded nature of this benchmark , I was fully expecting Escape Analysis to elide the lock thus rendering StringBuffer performance equivalent to that of StringBuilder .

明确了这个基准测试的单线程化的本质后，我期待着逸出分析会消除锁，从而将StringBuffer的性能提到了与StringBuilder相同的水平。