import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
public class shiyan{
public static void main(String[] arge){
//BufferedReader aa =new BufferedReader(new InputStreamReader(System.in));
//System.out.println(aa.readLine());
DataInputStream aa = new DataInputStream(System.in);
DataOutputStream bb = null;
int point = 0;
try {
bb = new DataOutputStream(new FileOutputStream("D:/aa.txt"));
while((point=aa.read()) != -1){
bb.write(point);
bb.flush();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
aa.close();
bb.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
问题描述：能正常运行，生成文件后 程序不自动关闭