bycomma.java

java课程的资料以及实验的代码

import java.util.*; 
public class Bycomma{ 
   public static String[] splitStringByComma(String source){ 
	  if(source==null||source.trim().equals("")) 
      return null; 
      StringTokenizer commaToker = new StringTokenizer(source,","); 
      String[] result = new String[commaToker.countTokens()]; 
      int i=0; 
      while(commaToker.hasMoreTokens()){ 
         result[i] = commaToker.nextToken(); 
         i++; 
        } 
      return result; 
   } 
   public static void main(String args[]){ 
     String[] s = splitStringByComma("5,8,7,4,3,9,1"); 
     int[] ii = new int[s.length]; 
     for(int i = 0;i<s.length;i++){ 
        ii[i] =Integer.parseInt(s[i]); 
      } 
    Arrays.sort(ii); 
    //asc 
    for(int i=0;i<s.length;i++){ 
       System.out.println(ii[i]); 
     } 
    //desc 
    for(int i=(s.length-1);i>=0;i--){ 
       System.out.println(ii[i]); 
     } 
   } 
}