Java - Common Gotchas [closed]

Answer 1

When you create a duplicate or slice of a ByteBuffer, it does not inherit the value of the order property from the parent buffer, so code like this will not do what you expect:

ByteBuffer buffer1 = ByteBuffer.allocate(8);
buffer1.order(ByteOrder.LITTLE_ENDIAN);
buffer1.putInt(2, 1234);

ByteBuffer buffer2 = buffer1.duplicate();
System.out.println(buffer2.getInt(2));
// Output is "-771489792", not "1234" as expected