Set Table Alignment in Slides in Java

import com.spire.presentation.FileFormat;
import com.spire.presentation.ITable;
import com.spire.presentation.Presentation;
import com.spire.presentation.ShapeAlignmentEnum;

public class AlignTable {

    public static void main(String[] args) throws Exception {

        //Create a Presentation object
        Presentation presentation = new Presentation();

        //Load the sample PowerPoint document contain
        presentation.loadFromFile("C:\\Users\\Administrator\\Desktop\\sample.pptx");

        //Declare a ITable variable
        ITable table = null;

        //Loop through the shapes in the first slide
        for (Object shape: presentation.getSlides().get(0).getShapes()
             ) {

            //Check if shape is an instance of ITable
            if (shape instanceof ITable)
            {
                //Convert shape to table
                table =(ITable)shape;
            }
        }

        //Horizontally align table to center
        table.setShapeAlignment(ShapeAlignmentEnum.ShapeAlignment.AlignCenter);

        //Vertically align table to middle
        table.setShapeAlignment(ShapeAlignmentEnum.ShapeAlignment.AlignMiddle);

        //Save to file
        presentation.saveToFile("AlignTable.pptx", FileFormat.PPTX_2013);
    }
}