Returns a byte array of at least length 1 : Binary Bit « Language Basics « Java

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Java » Language Basics » Binary Bit Screenshots  Returns a byte array of at least length 1   import java.util.BitSet; public class Main {   public static void main(String[] argv) throws Exception {     BitSet bitset = new BitSet();     bitset.set(1);     System.out.println(toByteArray(bitset));   }   public static byte[] toByteArray(BitSet bits) {     byte[] bytes = new byte[bits.length() / 8 + 1];     for (int i = 0; i < bits.length(); i++) {       if (bits.get(i)) {         bytes[bytes.length - i / 8 - 1] |= 1 << (i % 8);       }     }     return bytes;   } }        Related examples in the same category 1.  Utility for byte swapping of all java data types 2.  Bitwise Demo 3.  Binary Digits 4.  Using the bitwise operators 5.  Bitwise complement (~): inverts ones and zeroes in a number 6.  Convert a number to negative and back 7.  Bitwise AND (&) 8.  Bitwise OR (|) 9.  Bitwise XOR (^) 10.  Left shift (<<) 11.  Performing Bitwise Operations on a Bit Vector 12.  Converting Between a BitSet and a Byte Array 13.  Shift to the left 14.  Signed shift to the right 15.  Unsigned shift to the right 16.  Bit-level unpacking of floating-point data