datautil.java

高质量Java程序设计 源代码

package net.betterjava.util;

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

public class DataUtil {

	private DataUtil() {
	}

	public static void writeCSV(String[][] csv, FileWriter fw) throws IOException {
		for (int i = 0; i < csv.length; i++) {
			for (int j = 0; j < csv[i].length; j++) {
				fw.write(csv[i][j] + ",");
			}
			fw.write("\n");
		}
		fw.flush();
	}

	public static void convertGC2CSV(FileReader fr, FileWriter fw) throws IOException {
	}

	public static void main(String[] args) {
		String[][] s = new String[5][4];
		FileWriter fw = null;
		try {
			fw = new FileWriter("test.csv");
			writeCSV(s, fw);
		} catch (IOException e) {
			e.printStackTrace(System.out);
		} finally {
			try {
				fw.close();
			} catch (IOException e1) {
				e1.printStackTrace(System.out);
			}
		}
	}
}