FileInputStream 从文件系统中的某个文件中获得输入字节
FileOutputStream,意为文件输出流,是用于将数据写入File或 FileDescriptor的输出流
代码demo如下
public class FileStreamTest {
public static void main(String[] args) {
File file = new File("C:\\project\\test.txt");
try {
FileInputStream ipt = new FileInputStream(file);
byte[] data = new byte[100];
while (ipt.read(data) != -1) {
System.out.print(new String(data, "utf8"));
}
ipt.close();
FileOutputStream ops = new FileOutputStream("C:\\project\\test1.txt");
ops.write(new String("测式").getBytes("utf8"));
ops.flush();
ops.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}