How to enable pretty print JSON output (Gson)

In tutorial, we show you how to enable pretty print JSON output in Gson framework. In last Gson – object to/from json example :

	Gson gson = new Gson();  	String json = gson.toJson(obj);  	System.out.println(json);

the JSON output is display as compact mode like following :

{"data1":100,"data2":"hello","list":["String 1","String 2","String 3"]}

To enable pretty print, you should use GsonBuilder return a Gson object :

	Gson gson = new GsonBuilder().setPrettyPrinting().create();  	String json = gson.toJson(obj);  	System.out.println(json);

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