How can I determin how many columns there are in a Object[][]? Every row has the same number off columns

I know how to determin the number of rows

			

			

			public int getRowCount(String[][] data)
			

			{
			

			int rv=0;
			

			if(data!=null)
			

			{
			

			rv=data.length;
			

			}
			

			return rv;
			

			}