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The validateJeroo() method takes in an array of Jeroo objects and could throw two different exceptions.
If a Jeroo in the array is null,...
X1157: callValidateJeroos
The validateJeroo() method takes in an array of Jeroo objects and
could throw two different exceptions.
If a Jeroo in the array is null, it will throw
an IllegalArgumentException.
If a Jeroo is facing North, it will throw an IllegalStateException.
Add two catch clauses to the try block in the method to:
Return -1 if any Jeroos are null, or
return -2 if any Jeroo is facing North.
The method already returns 0 on normal operation.
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