小编wae*_*adi的帖子

我刚刚开始学习如何操作数组列表。

我在计算myArray的总和时遇到了一个小问题 ------> 错误是Operator '+' cannot be applied to 'int', 'java.lang.Object'

public static void main(String[] args) {
    SpringApplication.run(DemoApplication.class, args);
    ArrayList<Integer> myArray  = new ArrayList<Integer>();
    myArray.add(6);
    myArray.add(2);
    myArray.add(1);
    int x = 0;
    Iterator myIterator = myArray.iterator();
    while (myIterator.hasNext()){
        System.out.println(myIterator.next());
        x = x + myIterator.next();
    }
}

我有这个包含Adress的接口,它是一个对象,如何通过*ngFor获取它的值？

export  interface User {
  id: number;
  name: string;
  username: string;
  email: string;
  address: Address;
}


export interface Address {
    street: string;
    suite: string;
    city: string;
    zipcode: string;
  }

<div *ngFor="let oneuser of table">
  <p>{{oneuser.id}}</p>
  <p>{{oneuser.name}}</p>
  <p>{{oneuser.username}}</p>
  <p>{{oneuser.email}}</p>
  <hr>
</div>