자바 클래스 임 플리 멘팅 및 메소드의 여러 조건 테스트

Question

저는 자바와 프로그래밍에 익숙하지 않아, 제가 작업해온 프로젝트에 대한 도움을 받기를 희망했습니다.

나는 Student라는 객체를 "시뮬레이트"하는 Java 클래스를 구현해야합니다. 이 클래스의 학생 객체는 학생 성적을 나타냅니다. 12 개의 변수, 3 개의 생성자, 12 개의 메소드가 있습니다.

각 학생 개체의 모든 데이터 입력란에 데이터를 채우고 배열에 각 학생 개체에 대한 참조를 저장하는 미리 작성된 응용 프로그램과 텍스트 파일 (여기에 표시되지 않음)이 있습니다.

가장 문제가있는 부분은 (1) 어떻게 생성자를 올바르게 만들 수 있습니까? (2) 인수를 취하는 setHomework와 같은 메소드를 올바르게 작성하고 메소드 내에서 여러 조건에 대해 을 비교하고이를 배열 요소에 할당하는 방법은 무엇입니까?

제공 할 수있는 도움에 미리 감사드립니다. 내가 말했듯이, 나는 아주 새롭기 때문에 거기에 확실한 은 많은 오류가있다. 어쨌든,이 불완전한 코드는 내가 지금까지 가지고 있습니다 :

public class Student{ 

private String name; 

private String sid; 

private double homework = NUM_HOMEWORK; //reference variable 

private double quizzes = NUM_QUIZZES; //reference variable 

private double exams = NUM_EXAMS; //reference variable 

final static int NUM_HOMEWORK = 4; 

final static int NUM_QUIZZES = 4; 

final static int NUM_EXAMS = 2; 

final static double HOMEWORK_MAX_POINTS = 5; 

final static double QUIZ_MAX_POINTS = 20; 

final static double MIDTERM_MAX_POINTS = 40; 

final static double FINAL_MAX_POINTS = 60; 


/*1st constructor. No-arg constructor. Sets object’s name variable to default value “Newstudent, A.” and object’s sid var to default of “0000000”. Also allocates 3 arrays; homework with length of NUM_HOMEWORK, quizzes with length of NUM_QUIZZES, and exams with length of NUM_EXAMS.*/ 
Student(){ 
    name = "Newstudent, A"; 
    sid = "0000000"; 
    int[] homework = new int[NUM_HOMEWORK]; 
    int[] quizzes = new int[NUM_QUIZZES]; 
    int[] exams = new int[NUM_EXAMS]; 
} 



/*2nd constructor. Takes 1 string arg and stores it in parameter newName. Param represents the name of a new Student object. Constructor sets object’s name var to the given newName and object’s sid var to default value of “0000000”. Also allocates same three arrays as first constructor.*/ 
Student(String newName) { 
    name = newName; 
    sid = "0000000"; 
    int[] homework = new int[NUM_HOMEWORK]; 
    int[] quizzes = new int[NUM_QUIZZES]; 
    int[] exams = new int[NUM_EXAMS]; 
} 


/*3rd constructor. Takes 2 string args and stores them in string params newName and newSid. Params represent the name and sid of a new Student object. Constructor sets object’s name var to the given newName and object’s sid var to the given newSid. Also allocates same three arrays as first constructor*/ 
Student(String newName, newSid){ 
    name = newName; 
    newSid = "0000000"; 
    int[] homework = new int[NUM_HOMEWORK]; 
    int[] quizzes = new int[NUM_QUIZZES]; 
    int[] exams = new int[NUM_EXAMS]; 
} 

/*Method takes string arg and stores it in string newName. Sets object’s name variable to newName. Returns void.*/ 
public static void setName(String newName){ 
    name = newName; 
} 

public static getName(){//Takes no args. Returns value of the object’s name variable. 
    return String name; 
} 

/*Takes 1 String arg and stores it in string param newSid. Sets object’s sid var to the given newSid. Returns void.*/ 
public static void setSid(String newSid){ 
    sid = newSid; 
} 

/*Takes an int arg and stores it in int param homeworkNumber, and a double arg and stores it in double param score. Method checks if homeworkNumber is a # between 1 and NUM_HOMEWORK and if score is a # between 0 and HOMEWORK_MAX_POINTS. If both those conditions are true it assigns the corresponding element of the homework array the value of score. Example: if homeworkNumber is 1 and score is 5 the element homework[0] is assigned value of 5. Returns void.*/ 
public static void setHomework(int homeworkNumber, double score){ 
    if(homeworkNumber > 1 && homeworkNumber < NUM_HOMEWORK && score > 0 && score < HOMEWORK_MAX_POINTS) 
    then score = homework; 
} 

/*Takes one int arg and stores it in a param homeworkNumber. Method returns one of the values in the object’s homework array. Method checks if homeworkNumber is # between 1 and NUM_HOMEWORK, and if this condition is true, method returns the double value at index homeworkNumber – 1 in the homework array. Otherwise, method returns 0. Method returns double.*/ 
public static getHomework(int homeworkNumber){ 
    if(homeworkNumber > 1 && homeworkNumber < NUM_HOMEWORK) 
    then return homeworkNumber – 1;  
    else return 0; 
} 

/*Method takes an int param named quizNumberand and a double param named score. Method checks if quizNumber is a between 1 and NUM_QUIZZES and if score is between 0 and QUIZ_MAX_POINTS. If both conditions are true assigns the corresponding element of the quizzes array the value of score. Example: if quizNumber is 1 and score is 18 the element quiz[0] is assigned 18. Method returns void.*/ 
public static void setQuiz(int quizNumber, double score){  
     if (quizNumber > 1 && quizNumber < NUM_QUIZZES && score > 0 && score < QUIZ_MAX_POINTS) 
     quizzes = score; 
} 

/*Takes one int arg and stores it in param quizNumber. Returns one of the values in the object’s quizzes array. Method checks if quizNumber is between 1 and NUM_QUIZZES and if true returns the value at index quizNumber – 1 in the quizzes array. Otherwise, method returns 0. Method returns double.*/ 
public static getQuiz(int quizNumber){ 
     if(quizNumber > 1 && quizNumber < NUM_QUIZZES) 
     return double quizNumber[] – 1   
     else return 0; 
} 

/*Takes one double args, stores it in param score. Checks if score is between 0 and MIDTERM_MAX_POINTS and if true, assign the element exams[0] the value of score. Returns void.*/ 
public static void setMidtermExam(double score){ 

    if(score > 0 && score < MIDTERM_MAX_POINTS) 
    score = exams[0];  
} 

public static getMidtermExam(){//Takes no args. Return double value of exams[0]. 
    return exams[0]; 
} 

/*Takes one double arg, stores in in param score. Checks if score is between 0 and FINAL_MAX_POINTS and iff true assigns exams[1] the value of score. Method returns void.*/ 
public static void setFinalExam(double score){ 
if (score > 0 && score < FINAL_MAX_POINTS) 
    score = exams[1]; 
} 

public static getFinalExam(){ //Takes no args. Returns double value of exams[1]. 
return exams[1]; 
} 

/*Takes no args. Returns a String which the student object’s name, sid, homework scores, quiz scores and exam scores are concatenated.*/ 
public static toString(){ 
return "Student total information. " + name + ", " + sid + ", homework: " + homework + ", quizzes: " + quizzes + ", exams: " + exams; 
} 



} 

Answer 1

생성자 :

이

public Student(String newName, String newSid){... } 

setHomework :

public static void setHomework(int homeworkNumber, double score) { 
    if (homeworkNumber > 1 && homeworkNumber < NUM_HOMEWORK && score > 0 && score < HOMEWORK_MAX_POINTS) { 
     homework[homeworkNumber - 1] = score; 
    } 
} 

숙제

가로 선언 두 번하지만 나는 너다. 그게 배열이 될거야?

private double[] homework;