求帮助怎么样用printStream类在e.txt中写上一首唐诗呢且是从键盘输入的

[QEC568320642]

求助我只会用printWriter的不符合题目要求

[huntor]

使用 java.util.Scanner 读入
使用 java.io.PrintStream 输出

PrintStream out = new PrintStream("e.txt", "GBK");
Scanner scanner = new Scanner(System.io);
while(scanner.hasNextLine()){
out.println(scanner.nextLine());
}
out.flush();
scanner.close();
out.close();

[phqqhaha]

[Quote=引用 1 楼 huntor 的回复:]

使用 java.util.Scanner 读入
使用 java.io.PrintStream 输出

PrintStream out = new PrintStream("e.txt", "GBK");
Scanner scanner = new Scanner(System.io);
while(scanner.hasNextLine()){
out.println(sca……
[/Quote]

这个有问题呀。。好像必须要catch exception才行。。。 还有 怎么关闭呢？一直在读取状态除非停止程序

[phqqhaha]

还有是System.in 不是System.io

[regerfe]

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.io.UnsupportedEncodingException;
import java.util.Scanner;

public class PrintPoem
{
	public static void main(String[] args)
	{
		try
		{
			
			PrintStream out = new PrintStream("e.txt","GBK");
			String poem = "床前明月光，\r\n疑是地上霜。\r\n举头望明月，\r\n低头思故乡。";
			out.print(poem);
			out.close();
			
			Scanner in = new Scanner(new File("e.txt"));
			while(in.hasNextLine())
			{
				System.out.println(in.next());
			}
			in.close();
			
		} catch (FileNotFoundException e)
		{
			e.printStackTrace();
		} catch (UnsupportedEncodingException e)
		{
			e.printStackTrace();
		}
	}
}

[xiongyu2006]

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.io.UnsupportedEncodingException;
import java.util.Scanner;

public class Ansewer29
{
	public static void main(String[] args)
	{
		// TODO Auto-generated method stub
		File file = new File("d:" + File.separator + "e.txt");
		FileOutputStream fout = null;
		try
		{
			fout = new FileOutputStream(file);
		}
		catch (FileNotFoundException e)
		{
			e.printStackTrace();
		}
		PrintStream ps = null;
		try
		{
			ps = new PrintStream(fout, true, "GBK");
		}
		catch (UnsupportedEncodingException e)
		{
			e.printStackTrace();
		}
		Scanner sc = new Scanner(System.in);
		String str = null;
		System.out.println("请输入古诗,按'q'退出!");

		while (sc.hasNextLine())
		{
			str = sc.nextLine();
			if (str.equals("q"))
			{
				System.out.println("退出,Bye");
				break;
			}
			ps.println(str);
		}
		try
		{
			fout.close();
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}
		ps.close();
	}
}