对象排序

跟插入排序一样，不过比较的是对象的某一个变量
public class ObjectSort {
    public static void display(List<Person> array){
        for(int i=0;i<array.size();i++){
            Person person = array.get(i);
            System.out.println(person.getFirstName()+" "+person.getLastName()+" age："+person.getAge());
        }
        System.out.println();
    }
    public static void sort(List<Person> array){
        for(int i=1;i<array.size();i++){
            Person tmp = array.get(i);
            int minIndex = i;
            for(int j=i-1;j>=0;j--){
                if(tmp.getLastName().compareTo(array.get(j).getLastName())<0){
                    array.set(j+1,array.get(j));
                    minIndex = j;
                }
            }
            if(minIndex!=i){
                array.set(minIndex,tmp);
            }
        }
    }
    public static void main(String[] args){
        List<Person> array = new ArrayList<Person>();
        Person person = new Person("Evans","patty",24);
        array.add(person);
        person = new Person("Smith","Doc",59);
        array.add(person);
        person = new Person("Smith","Lorraine",37);
        array.add(person);
        person = new Person("Smith","Paul",37);
        array.add(person);
        person = new Person("Yee","Tom",43);
        array.add(person);
        person = new Person("Hashimoto","Sato",21);
        array.add(person);
        person = new Person("Stimson","Henry",29);
        array.add(person);
        person = new Person("Velasquez","Jose",72);
        array.add(person);
        person = new Person("Vang","Minh",22);
        array.add(person);
        person = new Person("Creswell","Lucinda",18);
        array.add(person);
        display(array);
        sort(array);
        display(array);
    }
}

对象排序

原文：http://www.cnblogs.com/ajfajz/p/7272950.html