Java笔记12：Java对象排序，

Java笔记12：Java对象排序，

代码：

import java.util.Arrays;
import java.util.Comparator;

class Person {
	private String name;
	private int age;
	
	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public void setName(String name) {
		this.name = name;
	}
	
	public String getName() {
		return this.name;
	}
	
	public Person(String name, int age) {
		this.name = name;
		this.age = age;
	}
}

public class MyObjSort {
	public static void main(String[] args) {
		Person[] persons = {new Person("Zhang San",30), new Person("Chen Er",20), new Person("Liu Yi",10)};
		Arrays.sort (persons, new Comparator<Person>() { 
		    @Override 
		    public int compare(Person p1, Person p2) { 
		        if (p1.getAge() > p2.getAge()) { 
		            return 1; 
		        } else if (p1.getAge() < p2.getAge()) { 
		            return -1; 
		        } else { 
		            return 0; 
		        } 
		    } 
		}); 
		
		for(int i = 0; i < persons.length; i++) {
			System.out.println(persons[i].getName() + " " + persons[i].getAge());
		}
	}
}

运行结果：

Liu Yi 10

Chen Er 20

Zhang San 30