Category: Proxy usage
How do I create a Java string from a C++ string?
The short answer is:
String str = "test"; String wstr = L"test";
It really is that simple, but there are a few related issues you should be aware of.
By default, every Java string instance creation involves a pretty elaborate process. The runtime library has to:
- determine the C++ string's length
- convert the string characters to a Java byte
- create a Java String using the String(byte)constructor.
If performance is important for you, you can definitely optimize this process. You can get a pretty significant improvement almost free if you know for sure that your C++ strings are ASCII or UTF-8. In that case, you can set the runtime library's default encoding to "UTF-8", which improves conversion performance significantly. Take a look at the String reference for more details on this subject.