用冒泡法，对未知数据从小到大排序！（有错误）

package ai;

import java.io.*;


public class wo {
    public static void main(String[] args) {
        String[]intArray;

       intArray = new String[3];

        int i;

        for (i = 0; i < intArray.length; i++)

        {

            System.out.println("Please input data for stringArray " + i);

            try

            {

                BufferedReader in = new BufferedReader(new InputStreamReader(
                        System.in));

               intArray[i] = in.readLine();

            }

            catch (IOException e)

            {

                e.printStackTrace();

            }

        }

        int j,m;
        int l=intArray.length;

   for (j = 0; j < l-1; j++)
          for (m = j + 1; m < l; m++)
            if (intArray[j] > intArray[m])
            {
              int t =intArray[j];
              intArray[j] = intArray[m];
             intArray[m] = t;
          }
      
     

         
        for (j = 0; j <intArray.length; j++) {
            System.out.println(intArray[j] + " ");
        }

    }
}