Question

When using Gson to serialize an array to json, I get a new line after each element, e.g.

  "values": [
    962,
    962,
    0,
    962,
    483,
    479
  ]

is there anyway to avoid this, and have all values in the same line within Gson (that is, not post-processing Gson’s output)?

Answer 1

The GsonBuilder should by default compact the data when serializing to JSON. It is possible to configure it to not do this (for readability).

Example for compacting serializer

Gson gson = new GsonBuilder().create();

and for not compacting (pretty print)

Gson gson = new GsonBuilder().setPrettyPrinting().create();

See also Gson doc.