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Reading files with BufferedReader

As your work continues, the company has started receiving larger market data files. Your manager has suggested using Java I/O streams for better efficiency. As a first step, you need to implement a solution that reads the first few lines of a CSV file using a character stream.

The BufferedReader and FileReader classes have been imported for you.

This exercise is part of the course

Importing Data in Java

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Exercise instructions

  • Create a reader using chained constructors passing filePath to the FileReader.
  • Read and print the header line.
  • Read and print the first data row.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

public class BufferedReaderExample {
    public static void main(String[] args) {
        String filePath = "sample_market_data.csv";
        
        // Create a reader using chained constructors
        try (BufferedReader reader = new BufferedReader(new ____(____))) {
            // Read and print the header line
            String header = ____.____();
            System.out.println("Header: " + header);
            
            // Read and print the first data row
            String dataRow = reader.____();
            System.out.println("First data row: " + ____);
            
            System.out.println("Successfully read from file using BufferedReader");
        } catch (IOException e) {
            System.err.println("Error reading file: " + e.getMessage());
        }
    }
}
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