Java Lambda - UnaryOperator example

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UnaryOperator represents an operation on a single operand that produces a result of the same type as its operand. This is a specialization of Function for the case where the operand and result are of the same type.

Method

1. UnaryOperator identity

Example

The following example shows how to use UnaryOperator.

import java.util.function.UnaryOperator;
//from   w  w  w.j a  va  2  s.c o m
public class Main {

  public static void main(String[] args) {
    UnaryOperator<String> i  = (x)-> x.toUpperCase();
    
    System.out.println(i.apply("java2s.com"));
  }
}

The code above generates the following result.

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