對象的排序

import java.security.spec.DSAGenParameterSpec;


import org.omg.CORBA.PUBLIC_MEMBER;


import com.sun.jndi.url.iiopname.iiopnameURLContextFactory;


import sun.management.resources.agent;


public class Test2 {


public static void main(String[] args) {
ShuJu b=new ShuJu(5);
b.insert(0, "xing", 8, "男");
b.insert(1, "zhang", 56, "男");
b.insert(2, "liu", 4, "女");
b.insert(3, "wang", 5, "男");
b.insert(4, "xi", 2, "女");
System.out.println("排序前數據原型");
b.display();
b.method();
System.out.println("排序後數據原型");
b.display();


}


}
class person{
private String name;
private int age;
private String sex;
public person(String name, int age, String sex) {
super();
this.name = name;
this.age = age;
this.sex = sex;
}
public int getAge() {
return age;
}
public String getSex() {
return sex;
}
public String getName(){
return name;
}

}
class ShuJu{
        private person a[];
public ShuJu(int i) {
a=new person[i];
}
public void insert( int i,String name,int age,String sex){
a[i]= new person(name,age,sex);
}
//顯示數據
public void display(){
for(int i=0;i<a.length;i++){
System.out.println("姓名："+a[i].getName()+"年齡："+a[i].getAge()+"性別"+a[i].getSex());
}
}
public void method(){
int i,k;
for( i=1;i<a.length;i++){
person tem=a[i];
while(i>0&&a[i-1].getName().compareTo(tem.getName())>=0){//用的是string中的compareTo方法，這個方法是比較字符串打大小
a[i]=a[i-1];
i--;
}
a[i]=tem;
}
}
}