public class OutputStreamTest {
public static void main(String[] args) {
OutputStream fos=null;
try{
//2.创建文件输出对象
fos = new FileOutputStream("D:\\doc\\test.txt",true);
//3.执行写操作
String str ="I love Java";
byte[] words=str.getBytes();
fos.write(words,0, words.length);
System.out.println("文件已写入成功");
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}finally {
//4.关闭输出流
try{
if (fos!=null){
fos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}