java（android）从头开始创建JSONObject

Question

I'm trying to do something like:

public static final JSONObject MYOBJ = new JSONObject().put("value", "expression");

but eclipse get's mad and says there's an error on the line even though the tool tip shows No solutions available

I've tried changing JSONObject to type String and still the same prob. I'm shying away from hash maps and would really like to use JSON.

** EDIT - code location **

package ...

import ...

public class MyActivity extends Activity {
    public static final JSONObject MYOBJ = new JSONObject().put("value", "expression");

    ... // onCreate etc
}

Answer 1

Well it seems the JSONObject has a checked exception that must be handled. Try this

public static final JSONObject MYOBJ = new JSONObject(){
    {
        try {
            put("value", "expression");
        } catch(Exception e){
            e.printStackTrace();
        }
    }
};

Answer 2

The result of put() is an Object. Do it in two lines and all is well.

public static final JSONObject MYOBJ = new JSONObject();
static {
  MYOBJ.put("value", "expression");
}

Note that the static final doesn't prevent the object from being changed, just that the original reference MYOBJ will always be the same object.

Edit: Ah, I was probably using a different flavor of the JSON library. Nonetheless, the above approach will probably work nicely. If the types all match, add some more parens to the original line.