Java “insert”new ClassType（）“to complete Expression”是什么意思？

下面的代码创建了一个对象数组，然后尝试添加一个相同类型的对象

我得到错误语法错误，插入新的类类型来完成表达式 在线

vehicles.[index] = nextVehicle;

但在我看来，这没什么问题。从long到int的转换是否会导致一些问题

long vehicleSize = getVehicleSize();

Vehicle[] vehicles= new Vehicle[(int)vehicleSize];
Vehicle nextVehicle = null;
int offSet = 0;
int index= 0;
while (offSet < vehicleSize) {
     nextVeh = new Vehicle(db, offSet);
     vehicles.[index] = nextVehicle;
     index++;
     offSet += nextVehicle.getSize();
}

应该是

vehicles[index] = nextVehicle;

及

应该是

nextVehicle = new Vehicle(db, offSet);

nextVeh = new Vehicle(db, offSet);

nextVehicle = new Vehicle(db, offSet);