寻找一种仅通过查找字符串的一部分来从ArrayList中删除字符串的方法

Question

我想通过让用户键入Lisence车牌号码来删除整个输入，这将是一个唯一的数字。

字符串将打印出类似于"Car Ford F1 LC4PR0 Black“的内容。

有没有办法只找到"LC4PR0“并删除整个字符串？

public static void Add_Vehicle(ArrayList<String> list){

        int listsize = list.size();

        if(listsize == 50){
            System.out.println("Vehicle Garage Full! 50/50 Vehicles");
        }
        else{
            Scanner input = new Scanner(System.in);
            System.out.println("Enter Vehicle Type. Car/Motorbike");
            String VehicleType = input.nextLine().toUpperCase();




            if(VehicleType.equals("CAR")){
                String VehicleCar = "Car";

                System.out.println("Enter Vehicle Make");
                String CarMake = input.nextLine();

                System.out.println("Enter Vehicle Model");
                String CarModel = input.nextLine();

                System.out.println("Enter Vehicle Lisence Plate.");
                String CarPlate = input.nextLine();

                System.out.println("Enter Vehicle Colour");
                String CarColour = input.nextLine();

                String CarDetails = VehicleCar + " " + CarMake + " " + CarModel + " " + CarPlate + " " + CarColour;

                list.add(CarDetails);
        }
            else if(VehicleType.equals("MOTORBIKE")){
                String VehicleMotorbike = "Car";

                System.out.println("Enter Vehicle Make");
                String MotorbikeMake = input.nextLine();

                System.out.println("Enter Vehicle Model");
                String MotorbikeModel = input.nextLine();

                System.out.println("Enter Vehicle Lisence Plate.");
                String MotorbikePlate = input.nextLine();

                System.out.println("Enter Vehicle Colour");
                String MotorbikeColour = input.nextLine();

                String MotorbikeDetails = VehicleMotorbike + " " + MotorbikeMake + " " + MotorbikeModel + " " + MotorbikePlate + " " + MotorbikeColour;

                list.add(MotorbikeDetails);
        }
        else{
            System.out.println("Please Only Enter Vehicle Type, Car or Motorbike!");
        }
            Menu(list);
        }

    }```

Answer 1

如果您知道特定的车牌模式，您可以使用正则表达式来查找所有的出现情况。

Answer 2

使用String#split(String)。

将切片字符串拆分为带参数的字符串数组。

例如，"test test2 test3".split(" ")返回{"test","test2","test3"}。

请参阅下面的代码。

Java 7

public String search(String target){
  for(String n : list){
    String[] split = n.split(" ");
    if(split[3].equals(target)){
      return split[3]; // Return n if you want to return all string
  }
  // Cannot find target
  return null;
}

Java 8

public String search(String str){
  List<String> lst = list.filter(s -> s.split(" ")[3].equals(str)).collect(Collectors.toList());
  return lst.size() == 0 ? null : lst.get(0).split(" ")[3]; // Do not split if you want to return all string
}