rontext.java

从键盘获取一系列字母

import java.io.*;
public class rontext
{
	public static void main(String args[])
	{
		char a[];
		String s;
		try
		{
			BufferedReader c=new BufferedReader(new InputStreamReader(System.in));
			s=c.readLine();
			BufferedWriter out=new BufferedWriter(new FileWriter("D:/输入的文本.txt"));
			out.write(s);
			out.close();
			BufferedReader in=new BufferedReader(new FileReader("D:/输入的文本.txt"));
			a=new char[s.length()];
			in.read(a);
			for(int j=0;j<a.length-1;j++)
			   for(int t=j+1;t<a.length;t++)
			     if(a[j]>a[t])
			        {
			        	char m=a[j];
			        	a[j]=a[t];
			        	a[t]=m;
			        }
			in.close();
			BufferedWriter out2=new BufferedWriter(new FileWriter("D:/升序排列文本.txt"));
			out2.write(a);
			out2.close();
		}
		catch(Exception iox)
		{
			System.out.println("出现问题");
		}
	}
}