Bubble Sort in java

/* Bubble Sort */
import java.io.*;
class BubbleSort
{
   public static void main(String args[])
   {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
    int n=0,i,j,t;
    int a[] = new int[10];
    System.out.println("Enter size of the array:");
    try
    {
      n= Integer.parseInt(br.readLine());
    }
    catch(Exception e) { }
   
      System.out.println("Enter elements into the array:");
    
     try
     {
     for(i=0;i<n;i++)
       a[i] = Integer.parseInt(br.readLine());
     }
      catch(Exception e) { }
     for(i=0;i<n-1;i++)
      for(j=0;j<n-1-i;j++)
       if(a[j] > a[j+1])
       {
          t = a[j];
          a[j] = a[j+1];
          a[j+1] = t;
        }
     System.out.println("The sorted array is :");
     for(i=0;i<n;i++)
    System.out.println(a[i]);
     }
}