Android Question List entries in a JSON string

[Martincg]

If read arrays of JSON strings like this
{
"value":17,
"date":"2019-09-29 20:30:00"
}

Not all will have both entries.
How do I find out which entries are included?

 

[Martincg]

OK, I've discovered Map.Keys so all I need is

For Each mKey As String In MyMap.Keys
   if mKey = "value" then newVal = MyMap.Get("Value")
                      
 Next

 

[Erel]

There are several mistakes in this code:
1. The case is important. It should be MyMap.Get("value")
2. If you are interested in a specific key and you are not sure whether it exists or not then you should check it with ContainsKey:

If MyMap.ContainsKey("value") Then
 Dim value As Int = MyMap.Get("value")
End If

Another option if you want to be more sophisticated:

newVal = MyMap.GetDefault("value", newVal)

 

[Martincg]

Thanks Erel, I will use your suggestions.
I probably should have found that myself, but although I did one project a few years ago I am really a newbie and I can only take in so much at a time.