How is the volume of byte information measured?

The volume of byte information is measured in bytes (B) and their multiples:

• 1 byte (B) = 8 bits
• 1 kilobyte (KB) = 1024 bytes
• 1 megabyte (MB) = 1024 kilobytes
• 1 gigabyte (GB) = 1024 megabytes

In Java, methods that return the size of data in bytes can be used to measure information volume, such as the length of a byte array or the size of a file.

Example of obtaining the size of a string in bytes considering UTF-8 encoding:

String text = "Пример";
byte[] bytes = text.getBytes(StandardCharsets.UTF_8);
int sizeInBytes = bytes.length;
System.out.println("Size in bytes: " + sizeInBytes);

Thus, the volume of information is determined by the number of bytes needed to store the data.