assignments/recursive_calculator/java/csv/CSVWriter.java

package csv;

import java.io.FileWriter;
import java.io.IOException;

public class CSVWriter {

    FileWriter writer;
    char separator;
    boolean newline = true;

    public CSVWriter(String filename, char separator) throws IOException {
        this.writer = new FileWriter(filename);
        this.separator = separator;
    }

    public void write(String record) throws IOException {
        if (!newline) {
            this.writer.append(this.separator);
        } else {
            this.newline = false;
        }
        this.writer.append(record);
    }

    public void writeln() throws IOException {
        this.writer.append('\n');
        this.newline = true;
    }

    public void close() throws IOException {
        this.writer.flush();
        this.writer.close();
    }
}