getExpressionAt(int index) Return the expression at the specified index in this node's
"virtual" expression array.
Parameters: index - an index for an expression.
Returns the child at the specified index in this node's "virtual"
child array
Parameters: index - an index into this node's "virtual" child array the program element at the given position exception: ArrayIndexOutOfBoundsException - if index is outof bounds
Return the expression at the specified index in this node's
"virtual" expression array.
Parameters: index - an index for an expression. the expression with the given index. exception: ArrayIndexOutOfBoundsException - if index is outof bounds.