将int转换为unsigned short java [英] Convert int to unsigned short java

问题描述

我在java中编写了一个.obj解析器来模拟iPhone上的3D对象。我想将数据导出为二进制文件，该文件必须尽可能小。我有很多适合无符号短的索引，但它们在java中表示为int。

我想在文件中写入数据之前使用ByteBuffer类进行转换。我想在将它们推入ByteBuffer之前我必须先操作字节，但我不知道怎么做。

如果你能帮助我，请提前感谢你。<在p中，unsigned short可以表示为 char 。只需将int转换为char并在ByteBuffer上使用 putChar（）。

  myBuffer.putChar（（char）my16BitInt）; 
  

I have written a .obj parser in java to modelize 3D objects on iPhone. I would like to export the data as a binary file, which must be as small as possible. I have plenty of indices that would fit a unsigned short, but they are represented as int in java.

I would like to use the ByteBuffer class to do the conversion just before writing the data in a file. I suppose I will have to manipulate bytes before pushing them into the ByteBuffer but I have no idea how to do so.

Thank you in advance if you can help me.

解决方案

In Java, an unsigned short can be represented as a char. Just cast the int to char and use putChar() on the ByteBuffer.

myBuffer.putChar((char) my16BitInt);

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