MPAndroidChart-Get data from sqlite

I want to get data from sqlite and display it to MPAndroidChart and it show just 1 row database but have 3 BarChart. This is my code

        try{
            Cursor cursor = dbHelper.fetchChartStatistic("1");      
            cursor.moveToFirst();
            int count = cursor.getCount();
            String[] soal_salah = new String[count];
            String[] total_nilai = new String[count];       
            if(cursor!=null){
                do{
            for(int x=0; x<count; x++) {
                total_nilai[x] = cursor.getString(4);
                soal_salah[x] = cursor.getString(2);
            }
            }while(cursor.moveToNext());
            }
            ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
            for (int i = 0; i < total_nilai.length; i++) {
                yVals1.add(new BarEntry((float) Float.parseFloat(values[i]),i));
            }

            ArrayList<String> xVals = new ArrayList<String>();
            for (int i = 0; i < total_nilai.length; i++)
                xVals.add(total_nilai[i%total_nilai.length]);

            BarDataSet set1 = new BarDataSet(yVals1, "Data Set");
            set1.setColors(ColorTemplate.VORDIPLOM_COLORS);
            set1.setDrawValues(false);
            BarData data = new BarData(xVals, set1);
            mChart.setData(data); 
        }catch(Exception c){
            c.printStackTrace();
            }
        }

the barchart show this

http://ift.tt/1HdjQAn