Input Streams.read（）谁可以正常工作

Question

我有以下代码：

public static void main(String[] args) throws Exception {

 FileInputStream inputStream = new FileInputStream("c:/data.txt");

 FileOutputStream outputStream = new FileOutputStream("c:/result.txt");

 while (inputStream.available() > 0) {
  int data = inputStream.read(); 
  outputStream.write(data); 
 }

 inputStream.close(); 
 outputStream.close();
}

我不明白以下内容：int data = inputStream.read();

[逐个读取文件c：/data.txt的字节，然后自动将其连接到可行数据中，还是inputStream.read()一次读取所有文件c:/data.txt并将所有内容分配给数据变量？] >

我有以下代码：public static void main（String [] args）引发异常{FileInputStream inputStream = new FileInputStream（“ c：/data.txt”）; FileOutputStream outputStream = new ...

Answer 1

来自JavaDoc：