java - 如何使用字符串从数组列表中获取数据

Question

我这里有一个数组列表:

 ArrayList <vehicles> carsArray = new ArrayList<vehicles>();
    carsArray.add(new vehicles ("CAR","Peugot","3008",12500.00));
    carsArray.add(new vehicles ("CAR","BMW","316",4995.00));
    carsArray.add(new vehicles ("CAR","Ford","Fiesta",12995.00));

    carsArray.add(new vehicles ("VAN","P","3008",22500.00));
    carsArray.add(new vehicles ("VAN","B","316",24995.00));
    carsArray.add(new vehicles ("VAN","F","Fiesta",22995.00));

我想做的是遍历这个数组列表，只让货车出来。有没有办法遍历数组，如果车辆类型是“面包车”，则将其打印到控制台。

谢谢

Answer 1

它可以是这样的:

for(int i=0; i<carsArray.size(); i++) {
    if(carsArray.get(i).getType().equals("VAN")
        System.out.println(carsArray.get(i).getModel());
}

这是假设 Vehicle 类看起来像这样:

class Vehicle {
    String type;
    String brand;
    String model;
    String speed;

    private String getType() {
        return type;
    }

    private String setType(String vehType) {
        type = vehType;
    }

    ...
}