Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Also in[Ad Services Extensions 4](https://developer.android.com/sdkExtensions)  
Summary:[Ctors](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#pubctors)\|[Methods](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#pubmethods)\|[Inherited Methods](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#inhmethods)  

# Topic

`
public

final

class
Topic
`  
`

extends `[Object](https://developer.android.com/reference/java/lang/Object)`


``


`

|---|---------------------------------|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.adservices.topics.Topic |

<br />

*** ** * ** ***

Represent the topic result from the getTopics API.

## Summary

|                                                                                                                            ### Public constructors                                                                                                                            ||
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| ` `[Topic](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#Topic(long,%20long,%20int))`(long mTaxonomyVersion, long mModelVersion, int mTopicId) ` Creates an object which represents the result from the getTopics API. |

|                                                                                                                                                                     ### Public methods                                                                                                                                                                     ||
|-----------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` boolean`                                                            | ` `[equals](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` object) ` Indicates whether some other object is "equal to" this one. |
| ` long`                                                               | ` `[getModelVersion](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#getModelVersion())`() ` Get the ModelVersion.                                                                                                                |
| ` long`                                                               | ` `[getTaxonomyVersion](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#getTaxonomyVersion())`() ` Get the TaxonomyVersion.                                                                                                       |
| ` int`                                                                | ` `[getTopicId](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#getTopicId())`() ` Get the Topic ID.                                                                                                                              |
| ` int`                                                                | ` `[hashCode](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#hashCode())`() ` Returns a hash code value for the object.                                                                                                          |
| ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toString](https://developer.android.com/design-for-safety/privacy-sandbox/reference/adservices/topics/Topic#toString())`() ` Returns a string representation of the object.                                                                                                     |

| ### Inherited methods |
|-----------------------|---|
| From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object)          | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object.                                                                                                                                                      | | ` boolean`                                                                     | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one.                                           | | ` void`                                                                        | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.                                                          | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`<?>` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`.                                                                                                                                                | | ` int`                                                                         | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object.                                                                                                                                                 | | ` final void`                                                                  | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor.                                                                                                                            | | ` final void`                                                                  | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor.                                                                                                                         | | ` `[String](https://developer.android.com/reference/java/lang/String)          | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object.                                                                                                                                            | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed. | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed.                   | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*.                                                                                             | ||

## Public constructors

### Topic

Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Also in[Ad Services Extensions 4](https://developer.android.com/sdkExtensions)  

```
public Topic (long mTaxonomyVersion, 
                long mModelVersion, 
                int mTopicId)
```

Creates an object which represents the result from the getTopics API.

<br />

|                                     Parameters                                      ||
|--------------------|-----------------------------------------------------------------|
| `mTaxonomyVersion` | `long`: a long representing the version of the taxonomy. <br /> |
| `mModelVersion`    | `long`: a long representing the version of the model. <br />    |
| `mTopicId`         | `int`: an integer representing the unique id of a topic. <br /> |

## Public methods

### equals

Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public boolean equals (Object object)
```

Indicates whether some other object is "equal to" this one.

The`equals`method implements an equivalence relation on non-null object references:

- It is*reflexive* : for any non-null reference value`x`,`x.equals(x)`should return`true`.
- It is*symmetric* : for any non-null reference values`x`and`y`,`x.equals(y)`should return`true`if and only if`y.equals(x)`returns`true`.
- It is*transitive* : for any non-null reference values`x`,`y`, and`z`, if`x.equals(y)`returns`true`and`y.equals(z)`returns`true`, then`x.equals(z)`should return`true`.
- It is*consistent* : for any non-null reference values`x`and`y`, multiple invocations of`x.equals(y)`consistently return`true`or consistently return`false`, provided no information used in`equals`comparisons on the objects is modified.
- For any non-null reference value`x`,`x.equals(null)`should return`false`.

The`equals`method for class`Object`implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values`x`and`y`, this method returns`true`if and only if`x`and`y`refer to the same object (`x == y`has the value`true`).

Note that it is generally necessary to override the`hashCode`method whenever this method is overridden, so as to maintain the general contract for the`hashCode`method, which states that equal objects must have equal hash codes.

<br />

|                               Parameters                               ||
|----------|--------------------------------------------------------------|
| `object` | `Object`: the reference object with which to compare. <br /> |

|                                         Returns                                          ||
|-----------|-------------------------------------------------------------------------------|
| `boolean` | `true`if this object is the same as the obj argument;`false`otherwise. <br /> |

### getModelVersion

Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Also in[Ad Services Extensions 4](https://developer.android.com/sdkExtensions)  

```
public long getModelVersion ()
```

Get the ModelVersion.

<br />

|    Returns     ||
|--------|--------|
| `long` | <br /> |

### getTaxonomyVersion

Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Also in[Ad Services Extensions 4](https://developer.android.com/sdkExtensions)  

```
public long getTaxonomyVersion ()
```

Get the TaxonomyVersion.

<br />

|    Returns     ||
|--------|--------|
| `long` | <br /> |

### getTopicId

Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Also in[Ad Services Extensions 4](https://developer.android.com/sdkExtensions)  

```
public int getTopicId ()
```

Get the Topic ID.

<br />

|    Returns    ||
|-------|--------|
| `int` | <br /> |

### hashCode

Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public int hashCode ()
```

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by[HashMap](https://developer.android.com/reference/java/util/HashMap).

The general contract of`hashCode`is:

- Whenever it is invoked on the same object more than once during an execution of a Java application, the`hashCode`method must consistently return the same integer, provided no information used in`equals`comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
- If two objects are equal according to the`equals(Object)`method, then calling the`hashCode`method on each of the two objects must produce the same integer result.
- It is*not* required that if two objects are unequal according to the[equals(java.lang.Object)](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))method, then calling the`hashCode`method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class`Object`does return distinct integers for distinct objects. (The hashCode may or may not be implemented as some function of an object's memory address at some point in time.)

<br />

|                     Returns                      ||
|-------|-------------------------------------------|
| `int` | a hash code value for this object. <br /> |

### toString

Added in[API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public String toString ()
```

Returns a string representation of the object. In general, the`toString`method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The`toString`method for class`Object`returns a string consisting of the name of the class of which the object is an instance, the at-sign character \``@`', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:
>
> ```
>  getClass().getName() + '@' + Integer.toHexString(hashCode())
>  
> ```

<br />

<br />

|                                                      Returns                                                      ||
|--------------------------------------------------------------------|-----------------------------------------------|
| [String](https://developer.android.com/reference/java/lang/String) | a string representation of the object. <br /> |