如何使用包含相同类型对象的两个列表从对象生成哈希码

How to generate a hashcode from object with two list containing the same type of objects

假设我有一个class(同样的方法也存在):

public class SomeClassA {
    private int a;
    private int b;

        @Override
 public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + a;
    result = prime * result + b;
    return result;
 }
}

还有一个class:

public class SomeClassB {
  List<SomeClassA> firstList;
  List<SomeClassA> secondList;

如果两个对象在 firstList 中具有相同的对象而在 secondList 中具有相同的对象,我如何构建哈希码以便将它们视为相等。

//汉克

 public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + firstList.hashCode();
    result = prime * result + secondList.hashCode();
    return result;
 }