从列表中删除项目

我从学生的ArrayList中删除一个Student对象,这是我的代码,下面是Student.java

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package corejava.list;

/**
 * 
 * @author Rahul 
 */

public class Student {
private int id;
private String name;

public Student(int id,String name){
    this.id = id;
    this.name = name;
}

public Student(int id){
    this.id = id;        
}

@Override
public int hashCode(){
    return this.getId() * 37;
}

@Override
public String toString(){
    StringBuffer strb = new StringBuffer();
    strb.append("\tID : ").append(this.getId()).append(", NAME : ").append(this.getName());
    return strb.toString();
}

@Override
public boolean equals(Object studentOne){
    Student student = (Student) studentOne;
    boolean flag = false;
    if(this.getId() == student.getId()){
        flag = true;
    }
    return flag;
}

/**
 * @return the id
 */
public int getId() {
    return id;
}

/**
 * @return the name
 */
public String getName() {
    return name;
}
}

这是我的Class有一个主方法,

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package corejava.list;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * 
 * @author Rahul
 */



public class RemoveList {
    public static void main(String [] args){
        List studentList = null;
        try{
        studentList = new ArrayList(){{
            add(new Student(12,"Tom"));
            add(new Student(14, "Jack"));
            add(new Student(15, "Julean"));
            add(new Student(16, "Doughlas"));                
            add(new Student(17, "Bathsheba"));
        }};

        for(Iterator itr = studentList.iterator(); itr.hasNext();){
            System.out.println(itr.next());
        }

        System.out.println(studentList.remove(new Student(12)));

        for(Iterator itr = studentList.iterator(); itr.hasNext();){
            System.out.println(itr.next());
        }

    }catch(Exception e){
        e.printStackTrace();
    }
}
}

现在我的问题是,可以安全地从ArrayList中删除一个项目,就像我在上面的代码中所做的那样,

hashCode()在从Collection中删除Student对象方面起作用,

我们有更好的方法,