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编写程序,要求:用户在键盘每输入一行文本,程序将这段文本显示在控制台中。当用户输入的一行文本是“exit”(不区分大小写)时,程序将用户所有输入的文本都写入到文件log.txt中,并退出。(要求:控制台输入通过流封装System.in获取,不要使用Scanner)
import java.io.*;
public class Main {
public static void main(String[] args) {
BufferedReader in = null;
BufferedWriter out = null;
try {
in = new BufferedReader(new InputStreamReader(System.in));
out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("log.txt")));
String s;
while ((s = in.readLine()) != null) {
if (s.equals("exit") || s.equals("EXIT")) {
break;
}
System.out.println(s);
out.write(s);
out.newLine();
}
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}