Java Lambda - Function apply example

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Function apply applies this function to the given argument.

Syntax

apply has the following syntax.

R apply(T t)

Example

The following example shows how to use apply.

import java.util.function.Function;
//from ww w  .  ja  v a 2 s.c  om
public class Main {

  public static void main(String[] args) {
    Function<Integer,String> converter = (i)-> Integer.toString(i);
    
   
    System.out.println(converter.apply(3).length());
    System.out.println(converter.apply(30).length());
  }
}

The code above generates the following result.

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