heap sort in java

plz modify this program so that it can take input as integers and string both.....

public class heap_Sort{ public static void main(String a[]){ int i; int arr[] = {1,3,4,5,2};

System.out.println("\n  Heap Sort\n---------------\n");
System.out.println("\n  Unsorted Array\n\n");
for (i = 0; i < arr.length; i++)
  System.out.print(" "+arr[i]);
for(i=arr.length; i>1; i--){
  fnSortHeap(arr, i - 1);
}
System.out.println("\n  Sorted array\n---------------\n");
for (i = 0; i < arr.length; i++)
  System.out.print(" "+arr[i]);

}

public static void fnSortHeap(int array[], int arr_ubound){ int i, o; int lChild, rChild, mChild, root, temp; root = (arr_ubound-1)/2;

for(o = root; o >= 0; o--){
  for(i=root;i>=0;i--){
    lChild = (2*i)+1;
            rChild = (2*i)+2;
    if((lChild <= arr_ubound) && (rChild <= arr_ubound)){
      if(array[rChild] >= array[lChild])
        mChild = rChild;
      else
        mChild = lChild;
    }
            else{
      if(rChild > arr_ubound)
        mChild = lChild;
      else
        mChild = rChild;
    }

    if(array[i] < array[mChild]){
      temp = array[i];
      array[i] = array[mChild];
                array[mChild] = temp;
    }
  }
}
temp = array[0];
array[0] = array[arr_ubound];
array[arr_ubound] = temp;
return;

} }