Question

我正在尝试使用我附加的Person类中的对象创建链接列表，但我似乎无法打印我为每个对象创建的实际名称。我只能打印＆＃34; gibberish＆＃34;的典型.toString（）输出。我还需要一种在使用Objects时打印出名称的方法。

public class personlink {

public static void main(String[] args)
{
    LinkedList<Person> list = new LinkedList<Person>();

    Person Alice = new Person("Alice");
    Person Brady = new Person("Brady");
    Person Cathy = new Person("Cathy");
    Person Danny = new Person("Danny");
    Person Amy = new Person("Amy");
    Person Eddie = new Person("Eddie");
    Person newp = new Person("New Person");

    list.add(Alice);
    list.add(Brady);
    list.add(Cathy);
    list.add(Danny);
    //
    System.out.println("Linked List Content: " + list);
    //
    list.addFirst(Amy);
    list.addLast(Eddie);
    //
    System.out.println("LinkedList Content after addition: " + list);
    //
    list.removeFirst();
    list.removeLast();
    //
    System.out.println("LinkedList after deletion of first and last element: " + list);
    //
    list.add(0, newp);
    list.remove(2);
    //
    System.out.println("Final Content: " + list); 

}
}


public class Person 
{

String name;


public Person(String _name)
    {
        name = _name;
    }

    public String getName()
    {
        return name;
    }
}

Answer 1

修改Person类添加toString()方法。

Java链接人物对象列表 - 打印对象值

1 个答案: