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.

score 34 · Accepted Answer · answered Jun 30 '10 at 22:20

34

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.

answered Jun 30 '10 at 22:20

Jon Skeet

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Quite effective, but less readable than `Short.toUnsignedInt()`. – scottb Mar 19 '21 at 06:01
@scottb: True - that only became available about four years after the answer was written though :) – Jon Skeet Mar 19 '21 at 07:47

score 23 · Answer 2 · edited May 16 '17 at 05:12

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Since Java 1.8, the same can be done with Short.toUnsignedInt:

System.out.println("signed s=" + s + ", unsigned s=" + Short.toUnsignedInt(s))

edited May 16 '17 at 05:12

keplerian

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answered Jun 19 '16 at 12:19

jurek sokolowski

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What a difference time makes. – Nate Lockwood Jun 20 '16 at 19:04

How do I print a short as an unsigned short in Java

2 Answers2