All Implemented Interfaces:
```
public final class MessageCreateParams.System

                    
```
System prompt.
A system prompt is a way of providing context and instructions to Claude, such as specifying a particular goal or role. See our guide to system prompts.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`public interface`	`MessageCreateParams.System.Visitor`	An interface that defines how to map each variant of System to a value of type T.

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`final Optional<String>`	`string()`
`final Optional<List<BetaTextBlockParam>>`	`betaTextBlockParams()`
`final Boolean`	`isString()`
`final Boolean`	`isBetaTextBlockParams()`
`final String`	`asString()`
`final List<BetaTextBlockParam>`	`asBetaTextBlockParams()`
`final Optional<JsonValue>`	`_json()`
`final <T extends Any> T`	`accept(MessageCreateParams.System.Visitor<T> visitor)`
`final MessageCreateParams.System`	`validate()`
`Boolean`	`equals(Object other)`
`Integer`	`hashCode()`
`String`	`toString()`
`final static MessageCreateParams.System`	`ofString(String string)`
`final static MessageCreateParams.System`	`ofBetaTextBlockParams(List<BetaTextBlockParam> betaTextBlockParams)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Method Detail

string
```
 final Optional<String> string()
```

betaTextBlockParams

 final Optional<List<BetaTextBlockParam>> betaTextBlockParams()

isString
```
 final Boolean isString()
```

isBetaTextBlockParams
```
 final Boolean isBetaTextBlockParams()
```

asString
```
 final String asString()
```

asBetaTextBlockParams

 final List<BetaTextBlockParam> asBetaTextBlockParams()

_json
```
 final Optional<JsonValue> _json()
```

accept

 final <T extends Any> T accept(MessageCreateParams.System.Visitor<T> visitor)

validate

 final MessageCreateParams.System validate()

equals
```
 Boolean equals(Object other)
```

hashCode
```
 Integer hashCode()
```

toString
```
 String toString()
```

ofString

 final static MessageCreateParams.System ofString(String string)

ofBetaTextBlockParams

 final static MessageCreateParams.System ofBetaTextBlockParams(List<BetaTextBlockParam> betaTextBlockParams)

Class MessageCreateParams.System

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Method Detail

string

betaTextBlockParams

isString

isBetaTextBlockParams

asString

asBetaTextBlockParams

_json

accept

validate

equals

hashCode

toString

ofString

ofBetaTextBlockParams