问答题

请完成下列Java程序：读取自己的源文件并把它压缩成GZIP文件。
注意：请勿改动main()主方法和其他已有语句内容，仅在下划线处填入适当的语句。
import java.io.*;
import java.util.zip.*;
public class exl6 2
public static void mainString[] arg)
ex16_2 obj16_2 = new ex16_2();
obj16_2.doZip("ex16_2.java","ex16_2.gzip")

public void doZip(String strIn,String strOut
FileInputStream in;
FileOutputStream out;
GZIPOutputStream gzip;
int nFileLength;
byte[] barray = new byte[10];
try
in = new FileInputStream(strIn);
out = new FileOutputStream(strOut);
gzip = new GZIPOutputStream(out);
while((nFileLength = in.read(barray, 0 barray.length)) ＞ 0)
_____________________;
______________________;
gzip.close();
catch(Exception e)
e.printStackTrace();