Question

I have an integer used to seed my for loop:

for(int i = 0; i < value; i++)

Within my for loop I am seeding a byte array with byte content values that increment +1. For instance new byte[]{0x00}; But the 0x00 needs to be 0x01 on the next iteration, how can I convert my value of integer i into a value of byte in the 0x00 format?

I tried things like Byte.valueOf(Integer.toHexString(i)) but this just gives me a value that looks like 0 instead of 0x00.

Answer 1

new byte[]{0x00}

is actually equivalent to

new byte[]{0}

The 0x00 notation is just an alternative way to write integer constants, and if the integer constant is in the range -128 to 127, then it can be used as a byte.

If you have an existing integer variable that you want to use, and its value is in the range -128 to 127, then you just have to cast it:

int i = 1;
new byte[]{(byte)i};