Convert int to bytes

Question

I had a calendar widget and passed the values to another activity through bundle. How can I, after getting values from bundle, convert "year","month","day" into bytes?

    int year = extras.getInt("year");
    int day = extras.getInt("day");
    int month = extras.getInt("month");

You mean byte array? : http://stackoverflow.com/questions/2183240/java-integer-to-byte-array — Shobhit Puri, Oct 14 '14 at 04:36
Can you clarify (by expected outcome) what you mean by "into bytes"? — leesei, Oct 14 '14 at 04:36
Yes , can you tell me the difference between the two also? @ShobhitPuri — user3965683, Oct 14 '14 at 04:37
into byte array @leesei .. I want to eventually send them to another device (bluetoothsocket) and i must use byte array. — user3965683, Oct 14 '14 at 04:43
Check : http://stackoverflow.com/questions/842817/how-does-java-convert-int-into-byte — Haresh Chhelana, Oct 14 '14 at 04:52
@user3965683 than converting them to byte array as `shobhit-puri` mentioned is the way to go, you can then be explicit as to how many bytes each `int` consumes — leesei, Oct 14 '14 at 05:04

score 1 · Accepted Answer · answered Oct 14 '14 at 05:05

1

You can convert your int to bytes by using a ByteBuffer.

byte[] bytes = ByteBuffer.allocate(4).putInt(year).array();

answered Oct 14 '14 at 05:05

Daud Arfin

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Convert int to bytes

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