Java short type.
Information
Short types are so called signed two-complement numbers.
The 2 complement scheme allows both positive and negative integers to be represented.
The most significant bit of a two complement number is its sign bit.
The sign bit is 1 for negative numbers and 0 for positive numbers and for 0.
In Java the bytes are big-endian ordered, which means the most significant BYTE (where the sign bit is located) is always on the left side:
Short values are stored in 2 bytes and contains positive or negative integer numbers.
The short value range is: 216 = 65536
Half of this number (65536) are positive numbers ranging from: >=0 and <=32767
For example:
0x0000 = 0
0x0001 = 1
0x7FFF = 32767
The other half are negative numbers ranging from: >=-32768 and <0
For example:
0xFFFF = -1
0x8000 = -32768
To convert negative decimal values into hexadecimal values:
value = 216 + (neg_dec_value)
value = 65536 + (neg_dec_value)
For example:
neg_dec_value= -1
value = 65536 + (neg_dec_value) = 65536 + (-1) = 65535
The new decimal value 65535 equals 0xFFFF (Use your Windows calculator, to verify this).
During arithmetic operations the JVM always convert the short value into an int.
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