Int to Byte

Question

I wish to convert an int to a byte in Java. How does this work?

Answer 1

Let me try to give the simple formula:
Byte ranges between -128 and 127 inclusive. When int is assigned to the value between -128 to 127 inclusive, the conversion to the byte of that number will remain the same.
If int is less than -128, we just add than number with 256 to convert into byte.
If int ranges between 128 to 256 inclusive, that number will be deducted with 256.
If the number is greater than 256, We will divide that number with 256 and take the reminder...

Answer 2

ints are 8 bytes long:
2*2*2*2*2*2*2*2*2 = 256
byte is one byte long

signed/negative numbers start from max to zero, opposite of positives

positives: 0, 1, 2, 3, 4 ....
negatives: 256 (or 0), 255 (or - 1), 254 ....

negatives are represented as reverse positive in memory

Answer 3

Read mine answer here ☺
https://www.sololearn.com/Discuss/1011899/?ref=app

Answer 4

256-120=136

(2s complement rule)

Answer 5

https://coderanch.com/t/411768/java/converting-int-byte
https://way2java.com/casting-operations/java-int-to-byte/

Answer 6

Valen.H. ~ nice answers tnx :)

Answer 7

What is a int?

Answer 8

Ah! Thanks!

Answer 9

Seems there is one extra 2:
2*2*2*2*2*2*2*2*2 = 256
really it's 512

Answer 10

If int is less than -128, we just add than number with 256 to convert into byte.
If int ranges between 128 to 256 inclusive, that number will be deducted with 256.
If the number is greater than 256, We will divide that number with 256 and take the reminder...

Answer 11

Valen.H. ~ system how to do it? for example:
int 136 is equals to byte -120

Answer 12

Valen.H. ~ this is an example
https://code.sololearn.com/cDZA9UpYKYEs/?ref=app

Answer 13

Endorey int is Integer

Answer 14

Integer? I have a lot to learn here

Answer 15

Endorey
The set of integers, denoted Z, is formally defined as follows:
Z = {..., -3, -2, -1, 0, 1, 2, 3, ...}

int size is 16bits, means between -32768 , +32767

Answer 16

deepak sharma Valen.H. ~ Endorey Ahmed Mustafa
i find easy solution for caculate it mentally, for example:
8666 to byte->
8666%(modulus) 256 = 218
and now 218 - 256 = -38 byte :)

edit:
this is for 256 and bigger

Answer 17

Ahmed Mustafa finally i think your formula is complete.❤❤❤

Answer 18

int i1 = 10;
byte b1 = (byte) i1

Answer 19

If you want to convert data type int to byte
using the cast operator
int val;
byte val1=(byte)val;
this parentheses inside you given which data type you want to convert
this easy way to convert the data type.

Answer 20

What is mean by stack over flow?