Ambiguous grammar may not necessarily lead to ambiguity in meaning of the sentences generated by the grammar. Ambiguity in the meaning of a grammatically correct sentence implies that the grammar, from which the sentence is generated, is ambiguous For an unambiguous grammar, left-most derivation and right-most derivation strategies must result in the same parse tree. The result of the Java statement: x = + + y * 2; is "x" is assigned to 8 when y is equal to 3