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Calculation Mask Conversion Program

Overview

This program is a Java application that analyzes fixed-length COBOL data and converts it based on a calculation mask. It parses text data, generates formulas from numeric and symbolic combinations, and converts them into output formats such as CSV.

Environment

• Java 11 or later
• Windows / Linux / MacOS

How to Run

1. Navigate to the directory

   cd /path/to/src/app

   ※ Move to the directory where the program is located.

2. Compile Java files

   javac Main.java CPMData.java CPMEntry.java

3. Move to the execution directory

   cd ..

   ※ Move to the directory containing the input data (input.txt).

4. Run the program

   java csvoutput.Main

Customizable Sections

• Change input file

  try (BufferedReader br = new BufferedReader(new FileReader("input.txt")))

• Change output file

  try (BufferedWriter writer = new BufferedWriter(new FileWriter("output.csv")))

• Modify output items
  • You can customize the data written to output.csv in Main.java (lines 134-144).

Notes

• The input data (input.txt) must follow a fixed-length format.
• You may need to modify the paths depending on the execution environment.
• Since the output depends on the input data, please perform error checks and validate the data format in advance.

Creation Date

• Last Updated: 2024/06/25