Java 使用对象读取器函数读取文件，直到文件结束

我正在尝试读取写入文件中的对象

ObjectInputStream objectInputStream=new ObjectInputStream(new FileInputStream("D:\\Users\\Dell-7560\\Documents\\NetBeansProjects\\Advanced Computer Networking\\src\\Experiment8\\Packets.txt"));
        Packet p = new Packet();
        while((p=(Packet) objectInputStream.readObject())!=null)
        {
            p.printDetails();
        }

这是我得到的结果

Packet Weight : 1
Packet Data : stibulum in neque ne
Packet time value 1522079495482
Packet Weight : 2
Packet Data :  libero mattis hendr
Packet time value 1522079495482
Packet Weight : 3
Packet Data : rit in nec quam.
Packet time value 1522079495482
    at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:2626)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1321)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:373)
    at Experiment8.CreateDummyData.main(CreateDummyData.java:69)
C:\Users\Dell-7560\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 1 second)

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如何毫无例外地读取文件。i、 e.使用对象读取器功能直到文件结束。

只需从下面的行中删除：即可：

@media screen and  (min-width: 992px) // It should like this now
@media screen and  (min-width : : 992px) // It was before like that (: :) should not twice only single (:)

您在媒体查询中添加了：：两个分号，只需将其删除即可

同时将此项放在头标签中：

<meta name="viewport" content="width=device-width, initial-scale=1">

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将您的媒体查询放在css文件的末尾，要求部分显示我想做的事情，而不是您必须做的事情。我尝试了Izzy，但仍然不起作用。您是否设置了视口？是的，我添加了标记。非常感谢，这确实很有帮助。非常感谢，这确实很有帮助。

<meta name="viewport" content="width=device-width, initial-scale=1">