朋友求助的一个JAVA题目,偶也是不懂的,只能拿来请教各位了,先在此谢过. ^_^
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Objectives
In this assignment, you will gain experience performing the phases of the software development process while developing an object-oriented program. Additionally, this assignment gives you the opportunity to further hone your skills at building classes, manipulating objects in a Java program, and using exception handling. Furthermore, in this assignment, you will learn to use various I/O Java mechanisms.
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Problem Statement问题说明
In this assignment, you are to build a Student Management Application.
作业中，构建学生管理应用程序
Our Application must allow the user to perform the following actions:
本应用必须用户完成一下操作：
" Add a student, 增加学生
" modify any of the information related to this student (Except student ID),
" 修改与这个学生相关的任何信息（除了学生ID）
" delete a student, 删除学生
" display all the students (display only student ID and student full name) in alphabetical order of students' last name,
" 显示所有的学生（仅显示学生的ID和全名），用学生姓的字母顺序
" select a student (by specifying the student ID), and display all the information about the student.
" 选中一个学生（用学生的ID），并显示他的所有信息。
An student object holds the following information about this book:
一个学生目标包括一下信息
" Student ID 学生ID
" student's last name 姓
" student's first name 名
" number of years being a student. 几年级的学生
" Whether the student is Canadian or not. 是否在加拿大
" list of courses taken and the grade received for each. 所学过的课程和得到的成绩（用A，B，C级）
" Average. 平均分
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Specific Requirements特殊要求
In creating your application, you must satisfy the following requirements:
创造你的应用程序时，你必须满足以下要求：
" You must have a class called Resource (Resource.) as part of your application for student objects.
" 你必须有一个类叫做RESOURCE，作为你程序的一部分
" You must use array(s) only (no vectors, no linked lists, no nothing that is not an array). 你必须用只能用数组（不能用向量，连接的表格，任何不是数组的东西。）
" When your data collection is full, your program must expand it in a transparent fashion. This is to say that it cannot notify the user that the student registery is full nor must it prevent the user from adding more students. Instead, when your application senses that the data collection has reached its maximum capacity, it must first expand it, and this expansion must be unbeknown to the user, then it must store the new library resource the user is creating into the newly expanded data collection. 当你的数据满了，你的程序必须能以明晰的方式扩展它。即是说你不能通知用户学生登记簿已满或它必须防止用户增加更多的学生。取代的做法，当你的应用感觉到数据收集已达到它的最大容量，它必须先扩充它，这个扩充对用户而言是完全不知道的，然后它必须保存这个新的资源到数据收集中。
" Duplicated last names are allowed. Make sure your application orders them properly. For example: Anita Lee must be displayed before Yvan Lee.
" 复制姓是容许的。要确认你的应用中排序是正确的。Anita Lee必须显示在Yvan Lee的前面。
" The operation of displaying all the students, in alphabetical order of student's last name, should perform in O(n). (n is the number of students stored in the system.)
" 显示所有学生的操作， 以姓的字母顺序，应该用O（n）完成（n是学生存与系统中的数字）
" Your application (simplified version) must store its data in a file at shutdown and read the information at start-up. Do not forget to ask the user whether or not s/he wants to save the data before your application does so (i.e., saves the data).
" 你的应用程序（简单版）必须在关机时保存它的数据在一个文件中并能在开机时读到它。不要忘记在你的应用程序这样做的时候问用户是否要保存数据。
" Don't forget to handle different kind of errors, eg. inserting into full array, deleting from empty array, invalid input, etc.
" 不要忘记去处理不同的错误，如：插入满的数组，删除空数组，无效的输入等。
" For Java programmers: You must name your application class (the class with the main method) SMA.java. The reason for this is that it will be easier for the er to execute your application. S/he will simply need to type this command in order to execute your Library Management Application:
java SMA
/******************************************************/
Objectives
In this assignment, you will gain experience performing the phases of the software development process while developing an object-oriented program. Additionally, this assignment gives you the opportunity to further hone your skills at building classes, manipulating objects in a Java program, and using exception handling. Furthermore, in this assignment, you will learn to use various I/O Java mechanisms.
________________________________________
Problem Statement问题说明
In this assignment, you are to build a Student Management Application.
作业中，构建学生管理应用程序
Our Application must allow the user to perform the following actions:
本应用必须用户完成一下操作：
" Add a student, 增加学生
" modify any of the information related to this student (Except student ID),
" 修改与这个学生相关的任何信息（除了学生ID）
" delete a student, 删除学生
" display all the students (display only student ID and student full name) in alphabetical order of students' last name,
" 显示所有的学生（仅显示学生的ID和全名），用学生姓的字母顺序
" select a student (by specifying the student ID), and display all the information about the student.
" 选中一个学生（用学生的ID），并显示他的所有信息。
An student object holds the following information about this book:
一个学生目标包括一下信息
" Student ID 学生ID
" student's last name 姓
" student's first name 名
" number of years being a student. 几年级的学生
" Whether the student is Canadian or not. 是否在加拿大
" list of courses taken and the grade received for each. 所学过的课程和得到的成绩（用A，B，C级）
" Average. 平均分
________________________________________
Specific Requirements特殊要求
In creating your application, you must satisfy the following requirements:
创造你的应用程序时，你必须满足以下要求：
" You must have a class called Resource (Resource.) as part of your application for student objects.
" 你必须有一个类叫做RESOURCE，作为你程序的一部分
" You must use array(s) only (no vectors, no linked lists, no nothing that is not an array). 你必须用只能用数组（不能用向量，连接的表格，任何不是数组的东西。）
" When your data collection is full, your program must expand it in a transparent fashion. This is to say that it cannot notify the user that the student registery is full nor must it prevent the user from adding more students. Instead, when your application senses that the data collection has reached its maximum capacity, it must first expand it, and this expansion must be unbeknown to the user, then it must store the new library resource the user is creating into the newly expanded data collection. 当你的数据满了，你的程序必须能以明晰的方式扩展它。即是说你不能通知用户学生登记簿已满或它必须防止用户增加更多的学生。取代的做法，当你的应用感觉到数据收集已达到它的最大容量，它必须先扩充它，这个扩充对用户而言是完全不知道的，然后它必须保存这个新的资源到数据收集中。
" Duplicated last names are allowed. Make sure your application orders them properly. For example: Anita Lee must be displayed before Yvan Lee.
" 复制姓是容许的。要确认你的应用中排序是正确的。Anita Lee必须显示在Yvan Lee的前面。
" The operation of displaying all the students, in alphabetical order of student's last name, should perform in O(n). (n is the number of students stored in the system.)
" 显示所有学生的操作， 以姓的字母顺序，应该用O（n）完成（n是学生存与系统中的数字）
" Your application (simplified version) must store its data in a file at shutdown and read the information at start-up. Do not forget to ask the user whether or not s/he wants to save the data before your application does so (i.e., saves the data).
" 你的应用程序（简单版）必须在关机时保存它的数据在一个文件中并能在开机时读到它。不要忘记在你的应用程序这样做的时候问用户是否要保存数据。
" Don't forget to handle different kind of errors, eg. inserting into full array, deleting from empty array, invalid input, etc.
" 不要忘记去处理不同的错误，如：插入满的数组，删除空数组，无效的输入等。
" For Java programmers: You must name your application class (the class with the main method) SMA.java. The reason for this is that it will be easier for the er to execute your application. S/he will simply need to type this command in order to execute your Library Management Application:
java SMA
it's not difficult, but at least cost half an hour to finish .
典型的没看清问题
说明中就写了不允许用list，只能用array
lz自行解决，上面有位说了思路