import ohos.hiviewdfx.HiLog;
import ohos.hiviewdfx.HiLogLabel;
import ohos.hiviewdfx.HiLogConst;

import java.io.FileWriter;
import java.io.PrintWriter;

public class PrintWriterExample {
    private static final HiLogLabel LABEL = new HiLogLabel(HiLogConst.DEBUG, 0x00201, "PrintWriterExample");

    public static void main(String[] args) {
        // 指定输出文件路径
        String filePath = "/data/test.txt";

        try {
            // 创建FileWriter对象，用于写入字符流到文件
            FileWriter fileWriter = new FileWriter(filePath);

            // 创建PrintWriter对象，将字符流包装为打印流
            PrintWriter printWriter = new PrintWriter(fileWriter);

            // 使用PrintWriter的print和println方法写入数据
            printWriter.print("Hello, ");
            printWriter.println("HarmonyOS!");
            printWriter.printf("This is a formatted string: %d", 42);

            // 关闭流
            printWriter.close();
            fileWriter.close();

            HiLog.info(LABEL, "数据成功写入文件：{}", filePath);
        } catch (Exception e) {
            HiLog.error(LABEL, "写入文件时发生错误：{}", e.getMessage());
        }
    }
}