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

import java.io.FileOutputStream;
import java.io.PrintStream;

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

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

        try {
            // 创建FileOutputStream对象，用于写入字节流到文件
            FileOutputStream fileOutputStream = new FileOutputStream(filePath);

            // 创建PrintStream对象，将字节流包装为打印流
            PrintStream printStream = new PrintStream(fileOutputStream);

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

            // 关闭流
            printStream.close();
            fileOutputStream.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());
        }
    }
}