Give row count with -1 in loop like this
for(int i=1;i <= objSheet.getRows()-1;i++){
objItemList.add("A"+i);
}
So your code will be
public ArrayList<String> Items(){
ArrayList<String> objItemList = new ArrayList<String>();
Sheet objSheet = this.objExcel.getSheet("path");
for(int i=1;i <= objSheet.getRows()-1;i++){
objItemList.add("A"+i);
}
}
This will help you out if you face any problem let me know!