Achartengine Line Graph Using Data from JSON parsing -

i parsing json link in order 2 string series(the dates in x axis , integers in y axis). think need convert both strings integers, not sure. want display dates in x axis , values in y axis using graph line achartengine library.

string serie json "formatted": "54.5x" "28.8x" "80.7x".......

string serie json "enddates": "2011-12-31" "2010-10-19" "2009-10-113".......

the 2 string series "formatted" , "enddates" how display formatted in y axis , dates in x axis using achartengine line graph? below line graph example achartengine modify. thank in advance.

public class linegraph{    public intent getintent(context context) {        // our first data     int[] x = {1,2,3,4,5,6,7,8,9,10 }; // x values!     int[] y =  { 30, 34, 45, 57, 77, 89, 100, 111 ,123 ,145 }; // y values!     timeseries series = new timeseries("line1");//that's description of line @ bottom     for( int = 0; < y.length; i++)     {         series.add(x[i], y[i]);     }        xymultipleseriesdataset dataset = new xymultipleseriesdataset();//this object holds series(lines) in 1 graph     dataset.addseries(series);      //each series has renderer      xyseriesrenderer renderer = new xyseriesrenderer(); // used customize line 1     // customization time line 1!     renderer.setcolor(color.white);     renderer.setpointstyle(pointstyle.square);     renderer.setfillpoints(true);     renderer.setdisplaychartvalues(true);// displays y values right chart dots        xymultipleseriesrenderer mrenderer = new xymultipleseriesrenderer(); // holds collection of xyseriesrenderer , customizes graph     mrenderer.addseriesrenderer(renderer);      mrenderer.setzoombuttonsvisible(true);     mrenderer.setylabels(10);     mrenderer.setxlabels(5); //sets x values on x axis, instance if x=5, sets 5 values in total on x axis     mrenderer.setcharttitle("bus vs taxy chart");     mrenderer.setxtitle("dates");     mrenderer.setytitle("number of vehicles sold");          //the intent puts context(context), dataset(dataset), renderer(mrenderer) , line graph title     //the linechartintent specifies type of chart want, in case line.     intent intent = chartfactory.getlinechartintent(context, dataset, mrenderer, "line graph");//here set title     return intent;  } 

}