
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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VariableReferenceNode.java, OperationNode.java, ConstantNode.java, and PatternNode.java must have their own java classes with the correct methods implemented:
OperationNode: Has enum, left and Optional right members, good constructors and ToString is good
VariableReferenceNode: Has name and Optional index, good constructors and ToString is good
Constant & Node Pattern: Have name, good constructor and ToString is good
Make sure to include the screenshot of the output of Parser.java as well.
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