Please find the bellow code
Your links don't make any sense and no code is provided.
(Could be a hack against gmail? )
In Scala the variable val is immutable so if you set
scala> val foo = 5
you can't change the value by just saying scala> foo = 6
or change the value and type : scala> foo = 'cat'
You'll get an error.
However you can redeclare foo
scala> val foo = 'cat'
Now variable foo is of type String and has a value of 'cat'.
Hopefully this answers your question.
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