[单选题]

阅读下面写文件的程序 import java.io.*: public class WriteFile{ public static void main(String[] A) { int[] myArray={10,20,30,40}; try { FileOutputStream f=new FileOutputStream("ints.dat"); DataOutputStream ______ =new DataOutputStream(f); for(int i=0;i<myArray.length;i++)dos.writeInt(myArray[i]); dos.close(); System.out.println("Have written binary file ints.dat"); } catch(IOException ioe) { System.out.println("IOException"); } } } 程序中下画线处应填入的正确选项是

A.myArray

B.dos

C.ioe

D.ints

参考答案与解析:

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阅读下面写文件的程序import java.io.*:public class