UnaryTree (Java SE 23 & JDK 23)
Description: declaration: module: jdk.compiler, package: com.sun.source.tree, interface: UnaryTree
Keywords: com.sun.source.tree.UnaryTree interface

# Interface UnaryTree

All Superinterfaces:
  `ExpressionTree`, `Tree`

public interface UnaryTree extends ExpressionTree
A tree node for postfix and unary expressions. Use `getKind` to determine the kind of operator. For example:

       operator expression

       expression operator

See Java Language Specification:
  15.14 Postfix Expressions
  15.15 Unary Operators
Since:
  1.6

- ## Nested Class Summary

  ### Nested classes/interfaces declared in interface com.sun.source.tree.Tree

  `Tree.Kind`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `ExpressionTree`
  `getExpression()`
  Returns the expression that is the operand of the unary operator.

  ### Methods declared in interface com.sun.source.tree.Tree

  `accept, getKind`

- ## Method Details

  - ### getExpression

    ExpressionTree getExpression()
    Returns the expression that is the operand of the unary operator.
    Returns:
      the expression