java中处理对象时如何使用map

Question

So, I'm creating a program that allows users to specify the insurance cover they want as part of an insurance policy. As part of it, I need to use a map in order to track the owner of each specific insurance policy.

I have seen examples of how to use a map with regards to String and int values, but nothing for self made classes ( InsurancePolicy in my case).

So, I'm trying to do it like this, but I get the illegal expression warnings:

Map<String, InsurancePolicy> coverOwnerMap<String, InsurancePolicy>();

Any help would be very appreciated.

Answer 1

Right, that's invalid Java. Try,

Map<String, InsurancePolicy> coverOwnerMap = new HashMap<String, InsurancePolicy>();