按注释提示完成文件复制的程序 //FileStream源代码如下: import java.io.*; class FileStream { public static void main(String args []) { try { File inFile = new File("file1.txt"); //指定源文件 File outFile = new File("file2.txt"); // 指定目标文件 FileInputStream fis =(1); FileOutputStream fos = new FileOutputStream(outFile); int c; //逐字节从源文件中输入,再输出到 fos 流 while ((c = fis.read ())!=-1) (2); fis.close(); fos.close(); } catch (Exception e) { System.out.println("FileStreamsTest: "+e); } } }