Recent Posts
Recent Comments
Link
| 일 | 월 | 화 | 수 | 목 | 금 | 토 |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 |
Tags
- erlang
- program
- agile
- France
- history
- web
- Italy
- Software Engineering
- Programming
- hbase
- essay
- Java
- Kuala Lumpur
- MySQL
- QT
- RFID
- Malaysia
- management
- Book
- Python
- hadoop
- leadership
- Book review
- Linux
- comic agile
- programming_book
- ubuntu
- AI
- Artificial Intelligence
- django
Archives
- Today
- Total
Do not use loop for list iterations - lamdaj 본문
2011/04/26 - [Programming/Java] - Do not use loops for list operations
2011/04/28 - [Programming/Java] - Do not use loops for list operations
2011/04/28 - [Programming/Java] - Do not use loops for list operations
import java.util.ArrayList;
import java.util.List;
import com.google.common.collect.Lists;
import ch.lambdaj.Lambda;
import static org.hamcrest.Matchers.greaterThan;
// item 3 from http://codemonkeyism.com/generation-java-programming-style
// -cp .:./Guava/guava-r09/guava-r09.jar:./lambdaj-2.3.2-with-dependencies.jar
public class TestFilter {
public static void main(final String[] args) {
List<Person> persons = Lists.newArrayList(
new Person("A", 15),
new Person("B", 16),
new Person("C", 17));
List<Person> beerDrinkers =
// http://code.google.com/p/lambdaj
Lambda.select(persons,
Lambda.having(Lambda.on(Person.class).getAge(), greaterThan(16)));
}
}
interface HasAge {
public int getAge();
}
class Person implements HasAge {
public final String name;
public final int age;
public Person(String name, int age)
{
this.name = name;
this.age = age;
}
public int getAge() { return this.age; }
public String toString(){ return name + " = " + age; }
}
Comments