Java 11 and 12 – New Features

JSON data

Suppose that you have the following JSON data to be stored as a Java string:

{"plastic": { 
  "id": "98751", 
  "singleuse": { 
    "item": [ 
      {"value": "Water Bottle", "replaceWith": "Steel Bottle()"}, 
      {"value": "Straw", "replaceWith": "Ban Straws"}, 
      {"value": "Spoon", "replaceWith": "Steel Spoon"} 
    ] 
  } 
}} 

The following code shows how you would perform this action with the traditional String class, escaping the double quotes within the data by using \ and adding a newline escape sequence:

String data = 
"{\"plastic\": { \n" + 
  "\"id\": \"98751\", \n" + 
  "\"singleuse\": { \n" + 
    "\"item\": [ \n" + 
      "{\"value\": \"Water Bottle\", \"replaceWith\": \"Steel  Bottle()\"}, \n" + "{\"value\": \"Straw\", \"replaceWith\": \"Ban Straws\"}, \n" + "{\"value\": ...