RESTful Java Web Services - Third Edition

Basic data types available with JSON

While discussing the JSON syntax in the previous section, we glanced at some of the basic data types used in JSON. Let's take a detailed look at each item.

Here is the list of the basic data types available with JSON:

• Number: This type is used for storing a signed decimal number that may optionally contain a fractional part. Both integer and floating point numbers are represented by using this data type. The following example uses the decimal data type for storing totalWeight:

{"totalWeight": 123.456} 

• String: This type represents a sequence of zero or more characters. Strings are surrounded with double quotation marks and support a backslash escaping syntax. Here is an example for the string data type: ...