How do I print a short as an unsigned short in Java
Question
I have an array of short whose values range between 0 and the maximum value of a short. I scale the data (to display it as TYPE_USHORT) so that the resulting short values range between 0 and 65535. I need to print some of the scaled values but can't figure out how. The data are in an array and in a BufferedImage.
Solution
The simplest way is to convert to int:
short s = ...;
int i = s & 0xffff;
The bitmask is to make the conversion give a value in the range 0-65535 rather than -32768-32767.
OTHER TIPS
Since Java 1.8, the same can be done with Short.toUnsignedInt
:
System.out.println("signed s=" + s + ", unsigned s=" + Short.toUnsignedInt(s))
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