Convert integer to zero-padded binary string

Question

when converting int to binary, how to output it to 8 character, currently it only display 1 and short of the 7 zeros

code

int x = 1;
String bin = Integer.toBinaryString(x);
System.Out.Println(bin);

example output to 0000 0001

Pshemo · Accepted Answer · 2014-02-18 14:33:49Z

12

I am not sure if that is what you mean but how about something like

String.format("%8s", Integer.toBinaryString(1)).replace(' ', '0')

will generate 00000001

answered Feb 18, 2014 at 14:27

Pshemo

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ohlmar · Accepted Answer · 2014-02-18 14:46:07Z

1

You can pad your binary string with zeroes.

String bin = String.format("%8s", Integer.toBinaryString(x).replace(' ', '0');

answered Feb 18, 2014 at 14:27

ohlmar

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Smutje · Accepted Answer · 2014-02-18 14:27:42Z

0

Convert, check the resulting length and add zeros if < 8.

answered Feb 18, 2014 at 14:27

Smutje

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