How to Rotate a Cell in Excel in Java. For further details refer to this article: https://kb.aspose.com/cells/java/how-to-rotate-a-cell-in-excel-using-java/

How to Rotate a Cell in Excel in Java.java

import com.aspose.cells.Cell;
import com.aspose.cells.Cells;
import com.aspose.cells.License;
import com.aspose.cells.Style;
import com.aspose.cells.Workbook;
import com.aspose.cells.Worksheet;

public class RotateACellInExcelUsingJava
{
	public static void main(String[] args) throws Exception 
	{
		    // Initialize license
        License licForCells = new License();
        licForCells.setLicense("Aspose.Cells.lic");

        // Create a workbook
        Workbook wbForRotatedText = new Workbook();

        // Access first worksheet
        Worksheet wsForRotatedText = wbForRotatedText.getWorksheets().get(0);

        // Access cells collection
        Cells cellsForRotatedText = wsForRotatedText.getCells();

        // Access target cell
        Cell cellForRotatedText = cellsForRotatedText.get("D5");
        
        // Set cell text
        cellForRotatedText.putValue("Text to be rotated");

        // Get cell style
        Style objStyle = cellForRotatedText.getStyle();

        // Set rotation angle
        objStyle.setRotationAngle(60);

        // Set cell style
        cellForRotatedText.setStyle(objStyle);

        // Save the workbook
        wbForRotatedText.save("RotateText_test.xlsx");

        System.out.println("Done");	
	}
}