ProcessingInstruction (Java SE 9 & JDK 9 )

All Superinterfaces:

Node
```
public interface ProcessingInstruction
extends Node
```
The ProcessingInstruction interface represents a "processing instruction", used in XML as a way to keep processor-specific information in the text of the document.
No lexical check is done on the content of a processing instruction and it is therefore possible to have the character sequence "?>" in the content, which is illegal a processing instruction per section 2.6 of [XML 1.0]. The presence of this character sequence must generate a fatal error during serialization.
See also the Document Object Model (DOM) Level 3 Core Specification.

Field Summary
- Fields inherited from interface org.w3c.dom.Node
  ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getData()`	The content of this processing instruction.
`String`	`getTarget()`	The target of this processing instruction.
`void`	`setData(String data)`	The content of this processing instruction.

Methods inherited from interface org.w3c.dom.Node
appendChild, cloneNode, compareDocumentPosition, getAttributes, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUserData, hasAttributes, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setNodeValue, setPrefix, setTextContent, setUserData

- Method Detail
  - getTarget
```
String getTarget()
```
    The target of this processing instruction. XML defines this as being the first token following the markup that begins the processing instruction.
  - getData
```
String getData()
```
    The content of this processing instruction. This is from the first non white space character after the target to the character immediately preceding the ?>.
  - setData
```
void setData(String data)
      throws DOMException
```
    The content of this processing instruction. This is from the first non white space character after the target to the character immediately preceding the ?>.
    
    Throws:
    
    DOMException - NO_MODIFICATION_ALLOWED_ERR: Raised when the node is readonly.