Zero dependency tiny json parser & serializer.
String jsonStr = "{" +
"\"a\":null," +
"\"b\":1," +
"\"c\":2.3," +
"\"d\":false," +
"\"e\":\"txt\"," +
"\"f\":[1]," +
"\"g\":{\"h\":1}}";
//parse json
JsonObj json = TinyJsonTool.parseObject(jsonStr);
//access json object fields
System.out.println("Field a is null: " + (json.get("a")==null));
System.out.println("Field b val: " + json.getInteger("b"));
System.out.println("Field c val: " + json.getDecimal("c"));
System.out.println("Field d val: " + json.getBool("d"));
System.out.println("Field e val: " + json.getString("e"));
System.out.println("Field f val: " + json.getArray("f").get(0).getInteger());
System.out.println("Field h val: " + json.getObject("g").getInteger("h"));
//create new json
JsonObj newJson = new JsonObj();
newJson.setNull("a");
newJson.set("b",1);
newJson.set("c",new BigDecimal("2.3"));
newJson.set("d",false);
newJson.set("e","txt");
newJson.setArrayOfIntegers("f", Arrays.asList(1));
newJson.set("g",new JsonObj().set("h",1));
//serialize to json
System.out.println("json: " + newJson.toJson());