students.java

用Java实现学生学籍管理系统

import java.util.*;
import java.io.*;

public class Students extends ArrayList implements Serializable{
	public void addnew (Student p){this.add(p);}
	public void delete (Student p){this.remove(p);}
//	public void delete (Object p){this.remove(p);}
	public Student findname (String nam){
		Student p=null;
//		System.out.println(nam);
		ListIterator it=this.listIterator();
		while(it.hasNext()){
			p=(Student) it.next();
//			System.out.println(p.name);
			if(p.name.equals(nam)){break;}
			else{ p=null;}
		}
		return p;
	}
	public Student findID (String id){
		Student p=null;
		ListIterator it=this.listIterator();
		while(it.hasNext()){
			p=(Student) it.next();
//			System.out.println(p.ID);
			if(p.ID.equals(id)){break;}
			else{ p=null;}
		}
		return p;
	}	
}