Android - 将对象传递给另一个活动

我正在利用以下类，我将其作为对象：http://pastebin.com/rKmtbDgF http://pastebin.com/rKmtbDgF

我正在尝试使用以下方式传递它：

Intent booklist = new Intent(getBaseContext(), BookList.class);

Bundle bundle = new Bundle();
bundle.putParcelable("imageManager", (Parcelable) im);                
booklist.putExtras(bundle);
booklist.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(booklist);

我正在尝试使用以下方式接收它：

ImageManager im  = (ImageManager) getIntent().getExtras().getParcelable("imageManager");

我收到以下错误：

java.lang.ClassCastException: com.example.example.ImageManager

最简单的方法是实现 Serialized ..

import java.io.Serializable;

@SuppressWarnings("serial") 
public class Student implements Serializable {

public Student(int age, String name){
    this.age = age;
    this.name = name;
}

public int getAge() {
    return age;
}
public void setAge(int age) {
    this.age = age;
}
public String getName() {
    return this.name;
}
public void setName(String name) {
    this.name = name;
}

private int age;
private String name;

}

将对象从活动 A 发送到活动 B

Student student = new Student (18,"Zar E Ahmer");
Intent i = new Intent(this, B.class);
i.putExtra("studentObject", student);
startActivity(i);

在 Activity B 中获取对象。

Intent i = getIntent();
Student student = (Student)i.getSerializableExtra("studentObject");