要实现不断追加的自定义对象数组的保存,可以采取以下步骤:
CustomObject
,并为其添加所需的属性和方法。public class CustomObject {
private String name;
private int age;
public CustomObject(String name, int age) {
this.name = name;
this.age = age;
}
// getter and setter methods
}
List customObjects = new ArrayList<>();
CustomObject object1 = new CustomObject("John", 25);
customObjects.add(object1);
CustomObject object2 = new CustomObject("Alice", 30);
customObjects.add(object2);
// 可以继续添加更多的自定义对象
ObjectOutputStream
将自定义对象数组写入文件中。try {
FileOutputStream fileOut = new FileOutputStream("custom_objects.ser");
ObjectOutputStream objectOut = new ObjectOutputStream(fileOut);
objectOut.writeObject(customObjects);
objectOut.close();
fileOut.close();
System.out.println("Custom objects are successfully saved.");
} catch (IOException e) {
e.printStackTrace();
}
ObjectInputStream
从文件中读取数组列表。try {
FileInputStream fileIn = new FileInputStream("custom_objects.ser");
ObjectInputStream objectIn = new ObjectInputStream(fileIn);
List savedCustomObjects = (List) objectIn.readObject();
objectIn.close();
fileIn.close();
// 对读取到的数组列表进行处理
for (CustomObject customObject : savedCustomObjects) {
// 进行处理
}
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
}
注意:需要确保自定义对象类CustomObject
实现了java.io.Serializable
接口,以便能够进行序列化和反序列化操作。
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