ByteBuf buffer = Unpooled.buffer(4); buffer.writeInt(123456789); long unsignedIntValue = buffer.readUnsignedInt(); System.out.println(unsignedIntValue);
ByteBuf buffer = Unpooled.buffer(8); buffer.writeLong(4294967295L); long unsignedIntValue = buffer.readUnsignedInt(); System.out.println(unsignedIntValue);In this example, a ByteBuf is created with a size of 8 bytes. A long value of 4294967295 (which is the maximum value that can be represented as an unsigned integer) is written to the buffer using the `writeLong()` method. The `readUnsignedInt()` method is then used to read the value from the buffer as an unsigned integer. The value is printed to the console. The package library for io.netty.buffer is Netty.