基于插入排序的objectsort的java实现

package com.liu.Sort;

public class objectSort {
    public static void main(String[] args)
    {
        int maxsize = 100;
        ArrayInOb arr;
        arr = new ArrayInOb(maxsize);
        
        arr.insert("evans", "hello", 12);
        arr.insert("liu", "yangchao", 43);
        arr.insert("wang", "shuo", 4);
        arr.insert("allience", "good", 54);
        arr.insert("we", "lgd", 87);
        arr.insert("ig", "dk", 32);
        arr.insert("find", "abondan", 45);
        arr.insert("alyin", "deby", 73);
        arr.insert("phythe", "c", 19);
        arr.insert("javascript", "c#", 23);
        
        arr.display();
        arr.insertSort();
        System.out.println();
        arr.display();
        
        arr.insertSortAge();
        System.out.println();
        arr.display();
    }
}

class ArrayInOb
{
    private Person[] a;
    private int nElems;
    public ArrayInOb(int max)
    {
        a = new Person[max];
        nElems = 0;
    }
    
    public void insert(String last,String first,int age)
    {
        a[nElems] = new Person(last,first,age);
        nElems++;
    }
    
    public void display()
    {
        for(int j=0;j<nElems;j++)
            a[j].display();
        
    }
    
    public void insertSort()
    {
        int in,out;
        for(out=1;out<nElems;out++)
        {
            in=out;
            Person temp = a[in];
            while(in>0&&a[in-1].getLast().compareTo(temp.getLast())>0)
            {
                a[in]=a[in-1];
                --in;
            }
            a[in] = temp;
        }
    }
    
    public void insertSortAge()
    {
        int in,out;
        for(out=1;out<nElems;out++)
        {
            in=out;
            Person temp = a[in];
            while(in>0&&a[in-1].getAge()>temp.getAge())
            {
                a[in]=a[in-1];
                --in;
            }
            a[in] = temp;
        }
    }
}

class Person
{
    private String lastname;
    private String firstname;
    private int age;
    public Person(String last,String first,int a)
    {
        lastname = last;
        firstname = first;
        age = a;
    }
    
    public void display()
    {
        System.out.print("last name:"+lastname);
        System.out.print(",first name:"+firstname);
        System.out.println(",age:"+age);
    }
    
    public String getLast()
    {
        return lastname;
    }

    public String getLastname() {
        return lastname;
    }

    public void setLastname(String lastname) {
        this.lastname = lastname;
    }

    public String getFirstname() {
        return firstname;
    }

    public void setFirstname(String firstname) {
        this.firstname = firstname;
    }

    public int getAge() {
        return age;
    }

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