The said Industrial Design consists of the visual features of the Washing Machine Having a Graphical User Interface shown in solid lines in the hereto annexed drawings, whether those features are features of one of shape, ornament, pattern or configuration or a combination of any of such features.Portions of the figures shown in broken lines are for the purposes of illustration only and do not form part of the design.Figure 1 is a top plan view of a Washing Machine Having a Graphical User Interface;Figure 2 is an enlarged view of the Graphical User Interface shown in Figure 1; andFigure 3 is a further enlarged view of the Graphical User Interface shown in Figure 2.Figures showing the Design are included.