Priklad na funkcionalni programovani v Java 8

gistfile1.txt

// mejme 2 tridy:

public class Results {

    private String result1, result2, result3;

    public void setResult1(String result1) {
        this.result1 = result1;
    }

    public void setResult2(String result2) {
        this.result2 = result2;
    }

    public void setResult3(String result3) {
        this.result3 = result3;
    }

    @Override
    public String toString() {
        return "Results{" +
                "result1='" + result1 + '\'' +
                ", result2='" + result2 + '\'' +
                ", result3='" + result3 + '\'' +
                '}';
    }
}

// ----------------------------------

public class MainOperace {

    private static Consumer<Results> consumer1 = (results) -> {
        results.setResult1("result from consumer 1");
    };

    private static Consumer<Results> consumer2 = (results) -> {
        results.setResult2("result from consumer 2");
    };

    private static Consumer<Results> consumer3 = (results) -> {
        results.setResult3("result from consumer 3");
    };

    public static void main(String[] args) {
        Results results = new Results();
        Stream.of(consumer1, consumer2, consumer3)
                .parallel()
                .forEach(consumer -> {
                    consumer.accept(results);
                });
        System.out.println(results);
    }

}