package com.imsl.test.example.math;

import com.imsl.math.*;
import java.text.*;

/**
 * <p>
 * Prints a matrix in CSV format. </p>
 *
 * A matrix is printed in CSV (comma separated value) format. This is done by
 * overriding the <code>format</code> method of <code>PrintMatrixFormat</code>
 * to add commas after all but the last number in each row.
 *
 * @see <a href="PrintMatrixFormatEx2.java"> Code</a>
 * @see <a href ="doc-files/PrintMatrixFormatEx2.out">Output</a>
 *
 */
public class PrintMatrixFormatEx2 extends PrintMatrixFormat {

    private int ncols;

    public PrintMatrixFormatEx2(int ncols) {
        this.ncols = ncols;
    }

    public String format(int type, Object entry,
            int row, int col, ParsePosition pos) {
        String text = super.format(type, entry, row, col, pos);
        if (type == ENTRY) {
            if (col < ncols - 1) {
                text += ",";
            }
        }
        return text;
    }

    public static void main(String args[]) {
        double a[][] = {
            {0., 1., 2.},
            {4., 5., 6.},
            {8., 9., 8.},
            {6., 3., 4.}
        };

        PrintMatrixFormat mf = new PrintMatrixFormatEx2(3);
        mf.setNoRowLabels();
        mf.setNoColumnLabels();

        //	Print the matrix
        new PrintMatrix().print(mf, a);
    }
}