序列发生器.java

20位序列发生器

import java.util.* ;

public class test
{
	public static void main(String[] args)
	{
		String str = ""+new Date().getTime(); 
		int    ran = new Random().nextInt();
		StringBuffer strb = new StringBuffer();
		if(ran<0)
			ran = ran * (-1) ;
		for(int i= 0 ;i <str.length() ; i ++)
		{	
			//int ran =  new Random()	;
			char cid = str.charAt(i) ;
			ran = (cid * (ran%1000)) %25 + (int)'a';
			strb.append((char)ran);
			System.out.println(strb.toString());	
			//str+=""+(ran%25+(int)'a') ;
		}
		
	}
}