str.java

实现文件的由大变小

import java.io.*;
public class Str
{
	public static void main(String args[])
	{
		int k=0;
		char ch;
		String s="";
		String str="";
		System.out.println("Enter a String please:");
		try
		{
			BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
			s=in.readLine();
		}catch(IOException e){}
		while(k<s.length())
		{
			ch=s.charAt(k);
			if(ch>='0'&&ch<='9')
				str=str+ch;
			else 
			{
				System.out.print(" "+str);
				str="";
			}
			k++;
		}
		System.out.print(" "+str);
	}
}