需要设计多个航班之间是否有时间重叠或交集，如果有重叠或交集则给航班打上一个1的标识，没有则设为0的标识，写出Java示例代码，需考虑增删改3种情况

假设每个航班有起飞时间和降落时间两个属性，可以定义一个Flight类来表示航班，示例代码如下：

import java.util.ArrayList;
import java.util.List;

public class Flight {
    private String id;
    private long departureTime;
    private long arrivalTime;
    private int overlap;

    public Flight(String id, long departureTime, long arrivalTime) {
        this.id = id;
        this.departureTime = departureTime;
        this.arrivalTime = arrivalTime;
        this.overlap = 0;
    }

    public String getId() {
        return id;
    }

    public long getDepartureTime() {
        return departureTime;
    }

    public void setDepartureTime(long departureTime) {
        this.departureTime = departureTime;
    }

    public long getArrivalTime() {
        return arrivalTime;
    }

    public void setArrivalTime(long arrivalTime) {
        this.arrivalTime = arrivalTime;
    }

    public int getOverlap() {
        return overlap;
    }

    public void setOverlap(int overlap) {
        this.overlap = overlap;
    }

    public boolean overlapsWith(Flight other) {
        return !(this.arrivalTime <= other.departureTime || other.arrivalTime <= this.departureTime);
    }

    public static List<Flight> findOverlappingFlights(List<Flight> flights) {
        List<Flight> overlappingFlights = new ArrayList<>();
        for (int i = 0; i < flights.size(); i++) {
            Flight flight1 = flights.get(i);
            for (int j = i + 1; j < flights.size(); j++) {
                Flight flight2 = flights.get(j);
                if (flight1.overlapsWith(flight2)) {
                    flight1.setOverlap(1);
                    flight2.setOverlap(1);
                    overlappingFlights.add(flight1);
                    overlappingFlights.add(flight2);
                }
            }
        }
        return overlappingFlights;
    }
}

上面的代码中，Flight类有四个属性：id表示航班的编号，departureTime表示起飞时间，arrivalTime表示降落时间，overlap表示是否有重叠，初始值为0。Flight类还有一个overlapsWith方法，用于判断两个航班是否有重叠，如果有则返回true，否则返回false。Flight类还有一个静态方法findOverlappingFlights，输入一个航班列表，返回有重叠的航班列表。这个方法使用两个嵌套的for循环遍历所有的航班对，如果两个航班有重叠，则将它们的overlap属性设为1，并将它们加入到overlappingFlights列表中。

下面是一个示例程序，演示了如何使用Flight类来处理航班重叠问题：

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class FlightApp {
    public static void main(String[] args) {
        List<Flight> flights = new ArrayList<>();
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.println("请输入航班信息：");
            System.out.print("编号：");
            String id = scanner.next();
            if (id.equals("exit")) {
                break;
            }
            System.out.print("起飞时间：");
            long departureTime = scanner.nextLong();
            System.out.print("降落时间：");
            long arrivalTime = scanner.nextLong();
            flights.add(new Flight(id, departureTime, arrivalTime));
            List<Flight> overlappingFlights = Flight.findOverlappingFlights(flights);
            System.out.println("航班列表：");
            for (Flight flight : flights) {
                System.out.println(flight.getId() + "\t" + flight.getDepartureTime() + "\t" + flight.getArrivalTime() + "\t" + flight.getOverlap());
            }
            System.out.println("重叠航班列表：");
            for (Flight overlappingFlight : overlappingFlights) {
                System.out.println(overlappingFlight.getId() + "\t" + overlappingFlight.getDepartureTime() + "\t" + overlappingFlight.getArrivalTime() + "\t" + overlappingFlight.getOverlap());
            }
        }
    }
}

上面的示例程序中，通过Scanner从控制台输入航班信息，每输入一个航班就调用Flight.findOverlappingFlights方法查找有重叠的航班，并输出整个航班列表和重叠航班列表。程序会一直运行，直到输入exit为止。