Convert integer to null binary string

Question

when converting int to binary, how to output it to 8 characters, currently it only displays 1 and less than 7 zeros

code

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

Output example on 0000 0001

Answer 1

I'm not sure if this is what you mean, but what about something like

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

will generate 00000001

Answer 2

You can fill your binary string with zeros.

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

Answer 3

, , < 8.