java.io.FileOutputStream.FileOutputStream(File file) throws FileNotFoundException
public FileOutputStream (File file)
Since: API Level 1
Constructs a new FileOutputStream that writes to file. The file will be truncated if it exists, and created if it doesn't exist.
创建一个写入文件的文件输出流。文件如果不存在将被删减并且创建。
Throws
FileNotFoundException if file cannot be opened for writing
举例如下：
OutputStream output = null;
//根据新建的文件建立输出流
output = new FileOutputStream(file);
//将输入流的内容读入到BUF，然后将BUF内容转到输出流中
byte buffer[] = new byte[4*1024];
while(input.read(buffer) != -1){
output.write(buffer);
}
//输出流输出内容
output.flush();