Question

Implement a class Student. For the purpose of this exercise the student has a name and a total quiz score. The appropriate constructors and methods are: getName(), addQuiz(int Score), getTotalScore(), getAverageScore(). Include a toString that prints the students name, the quiz average and the number of quizzes taken. Override the equals method in a meaningful way. You must compare more than one variable in the equals method.

Answer 1

Hi Please Refer the below Code .I have commented the code properly and attached the snapshot of output code follows exactly same design as per question .Please refer Code:-

Code:--

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public class Student {

// declaring the variable

public String name;

public int totalScore;

public int numOfQuizz;

// default constructor

public Student(){

}

double average=0.0;

// parameterized constructor

public Student(String name, int totalScore, int numOfQuizz) {

super();

this.name = name;

this.totalScore = totalScore;

this.numOfQuizz = numOfQuizz;

}

// get name method as per problem

public String getName() {

return name;

}

// get total score method

public int getTotalQuizScore() {

return totalScore;

}

// get average score method as per problem statement

public double getaverageScore(){

average = totalScore/numOfQuizz;

return average;

}

// implementation of to string

@Override

public String toString() {

//return "Student [name=" + name + ", totalScore=" + totalScore + ", numOfQuizz=" + numOfQuizz + "]";

System.out.println("Name of Student is " + name + " Total Score of Quiz " + totalScore + " Number of quizzs taken " + numOfQuizz + " Average Score of Quizz " + average );

return null;

}

// overriding the equals method

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

if (obj == null)

return false;

if (getClass() != obj.getClass())

return false;

Student other = (Student) obj;

if (name == null) {

if (other.name != null)

return false;

} else if (!name.equals(other.name))

return false;

if (numOfQuizz != other.numOfQuizz)

return false;

if (totalScore != other.totalScore)

return false;

return true;

}

public void setName(String name) {

this.name = name;

}

public void addQuiz(int quizScore) {

this.totalScore = quizScore;

}

// testing through driver code

public static void main(String[] args) {

Student st = new Student("David", 500, 4);

st.getName();

st.getTotalQuizScore();

st.getaverageScore();

st.toString();

}

}

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Snapshot of Code and Output:-

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Practice Project- Java - CheggNov/src/Student.java - Eclipse Ele Edit Source Refactor Navigate Search Projec Bun Window Help Quick Access 团Student,java X 2 public class Student 4 //declaring the variable 6 public i public String name; nt totalscore; 7 public int numofQuizz; // default constructor 11 public Student)i 12 13 double average 0. 16 parameterized constructor 17 public Student (String name, int totalScore, int numOfQuizz) 18 super this.name = name; this.totalScore -totalScore; this.numOfQuizz -numofQuizz; 20 21 25 get name method as per problem 26 public String getName() 27 28 29 get total score method 3public int getTotalQuizscore) 31 32 return name; return totalscore; 34 // get average score method as per problem statement 35 public double getaveragescore) 36 37 38 average - totalScore/numOfQuizz; return average; Writable Smart Insert 69:21 23:34 O Type here to search ^ φ 06-02-2018

Practice Project- Java - CheggNov/src/Student.java - Eclipse Ele Edit Source Refactor Navigate Search Projec Bun Window Help Quick Access Studentjava 50 41 / implementation of to string 43rride ▲44 public String toString(){ 45 46 47 //return "student [name-" + name + ", totalscore-" + totalscore + ", numOfQuizz_ + numOfQuizz + ..ין; System.out.println(Name of Student isnameTotal Score of Quiz totalscore " Number of quizzs taken "numofQuizz + " Average Score of Quizz averag return null; 50 overriding the equals method 51 0verride 52 public boolean equals (Object obj) 53 if (this-obj) if (obj null if (getclass) - obj.getclass)) Student other(Student) obj; return true; return false; return false; 56 59 if (narnenull) [ 61 if (other.name-null) return false; 63 65 67 69 ) else if Inere. equals(other.name)) if (numofQuizz!-other.nunofQuizz) if (totalscore!other.totalScore) return true; return false; return false; return false; 70 72 public void setlame (String name) t 73 74 75 this.name nane; 76 public void addQuiz(int quizScore) this.totalscore quizScore; Writable Smart Insert 69:21 23:34 O Type here to search ^ ф 06-02-2018

3ฏิ Practice-Project-Java-CheggNov/src/Student.java-Eclipse Ele Edit Source Refactor Navigate Search Projec Bun Window Help Quick Access 团Student,java X if (thisobj) if (obj null if (getclass) obj.getclass)) Student other = (Student) obj; return true; return false; return false; 59 if (nonenull) [ if (other.name-null) 61 63 65 67 69 return false; ) else if Inere equals(other.name)) if (numofQuizz !-other.nunofQuizz) if (totalscore != other-tota!Score) return true; return false; return false; return false; 78 72 public void setlame (String name) this.name nane; 73 75 76 public void addQuiz(int quizScore) f 78 this.totalscore quizscore; 79 /I testing through driver code public static void main(Stringl] args) 81 82 Student st-new Student("David, 500, 4); st-getame); st.getTotalQuizScore); st.getaveragescore ); st.tostring); 86 87 90 Writable Smart Insert 69:21 23:34 O Type here to search ^ ф 06-02-2018

Practice Project- Java - CheggNov/src/Student.java - Eclipse Ele Edit Source Refactor Navigate Search Projec Bun Window Help Quick Access Studentjava 3 52 public boolean equals(object obj) problems @Javadoc隐Declaration貝Console X Debug。Error Log if (thisobj) if (obj null) if (getclass) - obj.getclass)) Student other - (Student) obj; 53 cterminated> Student [Java Application CProgram FilesJavaire1.8.0 161binavaw.exe Name of Student is David Total Score of Quiz 500 Number of quizzs taken 4 Average 2018, 11:30:5 return true; return false; return false 56 58 59 if (nanenull) if (other .name != return false; null) 61 62 ) else if (Inore. equals(other.name)) İf (nunOfQuizz != other.nunOfQuizz) if (totalScore-other.totalScore) return true; return false; return false; return false; 64 65 69 78 71 72 public void setlame (String name) this.name = name; 75 769 public void addQuǐz(int quǐzscore) { this.totalscore-quizscore; // testing through driver code 81 public static void main(String[] args) t 82 83 84 85 Student st = new student( "David", st.getlame) st.getTotalQuizscore) st.getaveragescore(); st.toString); 500, 4); 87 89 23:30 O Type here to search 慘脈49 06-02-2018

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