将文件utf8转换为utf16 java

import java.io.*;

public class UTF8ToUTF16Converter {
    public static void main(String[] args) {
        String sourceFilePath = "source.txt"; // 源文件路径
        String targetFilePath = "target.txt"; // 目标文件路径

        try {
            // 创建输入流和输出流
            FileInputStream fis = new FileInputStream(sourceFilePath);
            InputStreamReader isr = new InputStreamReader(fis, "UTF-8");
            FileOutputStream fos = new FileOutputStream(targetFilePath);
            OutputStreamWriter osw = new OutputStreamWriter(fos, "UTF-16");

            // 读取源文件并转换编码
            int c;
            while ((c = isr.read()) != -1) {
                osw.write(c);
            }

            // 关闭流
            isr.close();
            osw.close();

            System.out.println("文件转换成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}