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comment added to explain the reason that JSON object is unordered

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to avoid implementators' misconceptions and tries to reimplement the
JSON object to keep the elements order
This commit is contained in:
Tomas Tulka 2017-06-09 09:00:17 +02:00
parent d0f5607998
commit 246350bbcd
1 changed files with 6 additions and 1 deletions
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7
JSONObject.java
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@ -164,7 +164,12 @@ public class JSONObject {
* Construct an empty JSONObject. * Construct an empty JSONObject.
*/ */
public JSONObject() { public JSONObject() {
// HashMap is used on purpose to ensure that elements are unordered // HashMap is used on purpose to ensure that elements are unordered by
// the specification.
// JSON tends to be a portable transfer format to allows the container
// implementations to rearrange their items for a faster element
// retrieval based on associative access.
// Therefore, an implementation mustn't rely on the order of the item.
this.map = new HashMap<String, Object>(); this.map = new HashMap<String, Object>();
} }