CS 4700/6700 Project P1In this project students will implement a program to process relational algebra (RA) queries in Java. Combined withfile editing for updating the data, this can lead to a simplified database system.Input relation tables are given in csv format whose names have the form RN.txt (where RN is a relation’s name);the first line of each such file lists the attribute names of the relation. Attributes are assumed to have either stringsor integers or decimal numbers as domains for this project. Relational algebra queries are given in an input file(named as RAqueries.txt), having one query per line. Your Java program reads RAqueries.txt and then processesthe queries contained in it. Your program should also write to an output file named as “RAoutput.csv” whichcontains one of the queries on one line and followed by the output produced for that query. The file shouldcontain all the queries your program can process. Your Java program will know what relation names are of interestafter reading RAqueries.txt.In RAqueries.txt relational algebra operators PROJECT, SELECT, INTERSECT, and JOIN are typed as these four-letterstrings: PROJ, SELE, INTE, JOIN; Natural JOIN is typed as *, UNION is typed as U, CROSS PRODUCT is typed as X, andDIFFERENCE is typed as -; subscripts are used to represent conditions for selections and to represent list ofattributes for projections; the comma “,” is used to represent “AND” and the word “OR” represents itself. Forsimplicity, in this project we do not work with the logical “OR” and “NOT” and we only work with the natural join.csv stands for “comma separated values”. An example csv line with 5 values is:2, abc, 4, xyzu, 9An example RAqueries.txt contains the following six lines:SELE_{Payment > 80} (Play)PROJ_{ANO, MNO} (Play)ACTORS * Play(PROJ_{ANO} (ACTORS * Play)(PROJ_{ANO} (SELE_{Payment > 80} (Play))) – ((PROJ_{ANO} (SELE_{ Payment < 70} (Play)))(PROJ_{ANO} (SELE_{Payment > 80} (Play))) U ((PROJ_{ANO} (SELE_{ Payment < 70} (Play)))Students can use any Java structures/classes as long as they are not directly intended for supporting RA operators.Students cannot use database-like systems in their Java programs. You should implement Java functions forvarious RA operators and then use the functions to process the queries. Your java program can assume that all theinput files are in the folder where your submitted program is to be run.Students write a report to describe the following:1. A line indicating How to Run the Program (that can be copy/pasted) on Windows or Unix.2. A list of Implemented Operators/Queries (using Line 1, … Line 6 to refer to the six queries and typePROJECT, SELECT, INTERSECT, JOIN, *, UNION, Difference, CROSS PRODUCT, Composition to indicate thatthe lIsted operators were implemented). Composition (of operators) is considered as an operator.3. Two Screenshots showing results produced by the implemented Java program when processing line 3 andline 4 in RAqueries.txt. If your program can not process these lines, then provide screenshots of two linesthat your program can process; this will lead to lower marks. Demonstration on how to make screenshotsis given in a file in the project folder on pilot.4. Output Produced by the implemented Java program answering the RA queries in RAqueries.txt (these arethe contents of RAoutput.csv).Use the bolden words in each item given above as a section title in the report to facilitate reading/marking. Usethe string “Section:” before the section titles. Sections not in your report will be treated as “not submitted”.Submit the following on pilot: Your report (a file) and your java program (a compressed file using zip etc).Marking will focus on what was done, correctness, and readability.
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