java编写一个程序,从键盘输入一串字符,从屏幕输出并将其存入a.txt文件中。
import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; import java.util.Scanner; public class OutputA { public static void main(String [] args){ Scanner sc=new Scanner(System.in); String s=sc.nextLine(); System.out.println("写入字符串 : "+s); try { BufferedWriter bw=new BufferedWriter(new FileWriter("d:\\a.txt")); bw.write(s); bw.flush(); bw.close(); //关闭流 } catch (IOException e) { e.printStackTrace(); } } }