Android - Class cloning not working

Question

public class UserWord extends WordADT {
     public int WORD_STATUS;
     public int POINT_OF_WORD;
     public int COUNT_OF_WRONG_ANSWER;

     @Override
     public Object getClone() throws CloneNotSupportedException {
         return super.clone();
     }
}

AND `

Userword temp = new Userword();
Usertword temp2 = temp.getClone();          //this way doesn't work.

I can't use getClone() method. I'm getting this error. How can i clone a instance?

java.lang.CloneNotSupportedException: Class UserWord doesn't implement Cloneable.

Fixed: clone:() method needs to implement IClonable inferface

Answer 1

使用它来克隆任何对象：

public static Object deepClone(Object object) {
    try {
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
        objectOutputStream.writeObject(object);
        ByteArrayInputStream bais = new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
        ObjectInputStream ois = new ObjectInputStream(bais);
        return ois.readObject();
    } catch (Exception e) {
        return null;
    }
}

在你的案例中使用如下：

Usertword temp2 = (Usertword)deepClone(temp);