safety.java

来自「酒店管理软件的源代码」· Java 代码 · 共 36 行

import java.util.StringTokenizer;
import java.util.ArrayList;

public class Safety
{
  public static String chaos(String input)
  {
    char[] charBuffer = input.toCharArray();
    int[] intBuffer = new int[charBuffer.length];
    StringBuffer strBuffer = new StringBuffer();
    for (int i = 0; i < charBuffer.length; i++)
    {
      if (i > 0)
        strBuffer.append('*');
      intBuffer[i] = ( (int) charBuffer[i]) + (i % 10) * 13 + 369;
      strBuffer.append(String.valueOf(intBuffer[i]));
    }
    return strBuffer.toString();
  }

  public static String coordinate(String input)
  {
    StringTokenizer st = new StringTokenizer(input, "*");
    ArrayList array = new ArrayList();
    while(st.hasMoreTokens())
    {
      array.add(new Integer(st.nextToken()));
    }
    char[] temp = new char[array.size()];
    for (int i = 0; i < array.size(); i++)
      temp[i] = (char) (((Integer)array.get(i)).intValue() - (i % 10) * 13 - 369);
    return String.valueOf(temp);
  }
}