Collection.sort() method override

If need to sort a object considering it attributes, we can do as below.


//Some class
private void sortList(){
   // Sorting
   Collections.sort(getParkedVehicles(), new Comparator<Vehicle>() {
   @Override
    public int compare(Vehicle vehicle2, Vehicle vehicle1)
    {
          DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
          return LocalDateTime.parse(vehicle1.getEntryTime(),formatter).compareTo(                                                                                    LocalDateTime.parse(vehicle2.getEntryTime(),formatter));
                }
            });
    }

public class Vehicle {
    private String idPlate;
    private String brand;
    private String entryTime;



    public String getIdPlate() {
        return idPlate;
    }

    public void setIdPlate(String idPlate) {
        this.idPlate = idPlate;
    }

    public String getBrand() {
        return brand;
    }

    public void setBrand(String brand) {
        this.brand = brand;
    }

    public String getEntryTime() {
        return entryTime;
    }

    public void setEntryTime(String entryTime) {
        this.entryTime = entryTime;
    }
}


More details:
http://stackoverflow.com/questions/18441846/how-to-sort-an-arraylist-in-java