java-mthend

String mDateStart=mYear+"-"+mMth+"-"+"01";
String mDateEnd="";
String Mth31="01,03,05,07,08,10,12";
String Mth30="04,06,09,11";
if (Mth31.indexOf(mMth)>0){
mDateEnd=mYear+"-"+mMth+"-"+"31";
} else if (Mth30.indexOf(mMth)>0){
mDateEnd=mYear+"-"+mMth+"-"+"30";
} else if ((Integer.parseInt(mYear) % 4)==0){
mDateEnd=mYear+"-"+mMth+"-"+"29";
} else {
mDateEnd=mYear+"-"+mMth+"-"+"28";
}