java解釋正確

Question

我有下面的問題，並想知道我是否解釋了這個問題是否正確。我對Java和編程非常陌生，所以技術術語甚至認爲我閱讀了我的教科書並理解了它們，如果我已經正確編寫了它們，我不確定。請看這個問題，讓我知道我正在做的是在正確的方向。

這個問題本身：

You are asked to implement a class to keep track of the students' academic result for a module. The system requires the following information about a student: 
 Student identification - a unique 7-digit identification that begins with 'S' for local students and 'F' for foreign student. E.g. S1234567. 
 Student name 
 Quiz mark - an integer number in the range of 0 to 100 
 Assignment mark - an integer number in the range of 0 to 100 
 Exam mark - a floating point number in the range of 0 to 100 
 Resit student - true if the student is retaking the paper, false otherwise. Resit student does not have quiz and assignment marks. 
Write a Java class called Student and provide the following: 
 suitable instance variables for the information described above 
 constructor(s) with the appropriate actions on the instance variables 
 the accessor methods for the instance variables 
 the computeScore() method to compute the score as follows: 
for resit students, take only the exam mark as the score 
for other students, score is calculated by using the formula 
9% * quiz + 21% * assignment + 70% * exam 
The score calculated is to be rounded up to the nearest integer and returned. 
 the findGrade() method that returns the grade based on the score: 

Score range 
Grade 
80 to 100 
A 
70 to 79 
B 
60 to 69 
C 
50 to 59 
D 
0 to 49 
F 
 the toString() method that returns the attribute values as a string with description. 

那麼這是我的代碼到目前爲止是正確的？我的意思是我宣佈的構造方式和這樣的... tks

/* 
* To change this template, choose Tools | Templates 
* and open the template in the editor. 
*/ 
package student_qn4; 

/** 
* 
* @author 
*/ 
public class Student 
{ 
    private String student_idno, student_name; 
    private int mark_quiz, mark_assig; 
    private float mark_exam; 
    private boolean student_resit; 


    public Student (String id, String name , int quizM , int assignM , int examM) { 

studentId = id; 
studentName = name; 
quizMark = quizM; 
assignMark = assignM; 
examMark = examM; 
} 

    public void setStudentnumber(String number) 
    { 
     student_idno = number; 
    } 

    public String getStudentnumber() 
    { 
     return student_idno; 
    } 

    public void setStudentname(String name) 
    { 
     student_name = name; 
    } 

    public String getStudentname() 
    { 
     return student_name; 
    } 

    public void setquizMark(int quizmarks) 
    { 
     mark_quiz = quizmarks; 
    } 

    public int getquizMark() 
    { 
     return mark_quiz; 
    } 


    public void setassigMark(int assigmarks) 
    { 
     mark_assig = assigmarks; 
    } 

    public int getassigMark() 
    { 
     return mark_assig; 
    } 


    public int computerScore() 
    { 
     /*do as the program asks then return the computer score */ 



    } 



    public String findGrade() 
    { 
     // Based on the computeScore() I have to access what is the grade and return that 
    } 

    public String toString() 
    { 
     // What is this method supposed to do? 
    } 

} 

Answer 1

一般可以，如果你採取其他答案中提出的意見。

但是，您的命名約定有點古怪。標準的java bean約定是用camelCase（所以markQuiz而不是mark_quiz）和你的getter和setter作爲getMarkQuiz和setMarkQuiz（get/set之後的第一個字母現在是大寫）命名你的屬性（你的整數等等）。對於布爾屬性，使用isXxx（）而不是getXxx（）。

這些約定被廣泛使用，將會使你的代碼更加工具型（與IDE如ecliipse /的NetBeans）

問候您的評論你的問題，家庭作業的問題是在一般皺着眉頭，這就是爲什麼你有後倒投了。通過玩和試驗，你會學到更多東西，弄錯它然後修復它，而不是來這裏尋求答案。至少你確實提供了一個骷髏答案，所以你正在考慮它，爲此做得非常好。保持它！