PrimitiveAndBinaryVariationsExample.java

package com.kiroule.ocpupgradejava8.topic2_7;

import java.util.Arrays;
import java.util.List;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.IntBinaryOperator;
import java.util.function.IntConsumer;

/**
 * @author Igor Baiborodine
 */
public class PrimitiveAndBinaryVariationsExample {

  public static void main(String... args) {

    BiFunction<String, String, FuturamaCharacter> bf =
        (firstName, lastName) -> new FuturamaCharacter(firstName, lastName);

    List<FuturamaCharacter> characters = Arrays.asList(
        bf.apply("Bender", "Rodriguez"),
        bf.apply("Philip", "Fry"),
        bf.apply("Turanga", "Leela"));

    BiConsumer<String, String> biConsumer =
        (firstName, lastName) -> System.out.println(lastName.toUpperCase() + ", " + firstName);
    for (FuturamaCharacter c : characters) {
      biConsumer.accept(c.getFirstName(), c.getLastName());
    }

    IntBinaryOperator intBinaryOperator = (s1, s2) -> s1 * s2;
    int side1 = 3, side2 = 8;
    IntConsumer intConsumer = (area) -> System.out.println("Area for rectangle with sides["
                                                           + side1 + ", " + side2 + "] is " + area);
    intConsumer.accept(intBinaryOperator.applyAsInt(side1, side2));
  }
}

class FuturamaCharacter {

  private String firstName;
  private String lastName;

  public FuturamaCharacter(String firstName, String lastName) {
    this.firstName = firstName;
    this.lastName = lastName;
  }

  public String getFirstName() {
    return firstName;
  }

  public String getLastName() {
    return lastName;
  }
}