XdevBarChart

public class BarChartObject {

	private String Y_Achse;
	private String kategorie;
	private String X_Achse;
	
	public String getY_Achse() {
		return this.Y_Achse;
	}
	public void setY_Achse(final String y_Achse) {
		this.Y_Achse = y_Achse;
	}
	public String getKategorie() {
		return this.kategorie;
	}
	public void setKategorie(final String kategorie) {
		this.kategorie = kategorie;
	}
	public String getX_Achse() {
		return this.X_Achse;
	}
	public void setX_Achse(final String x_Achse) {
		this.X_Achse = x_Achse;
	}
}

final XdevBarChartModel model = new XdevBarChartModel();model.addCategory("2017", ColumnType.NUMBER);
model.addCategory("2018", ColumnType.NUMBER);