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Thread: Can't find the solution to errors in code

  1. #1
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    Default Can't find the solution to errors in code

    Here is the problem from the book:

    "Write a class that uses a string array or arraylist object to hold 5 students names, an array of 5 chars to hold 5 students letter grades, and five array of 4 doubles each to hold each students set of test scores. The class should have methods that return a specific students name, average test score, and a letter grade based on the average.

    Demonstrate the class in a program that allows the user to enter each student's name and his four test scores. It should display each students average test score and letter grade."

    Here is the code I have so far. A buddy and I wrote this together but we cant seem to fix the syntax errors. Any help is appreciated.

    PHP Code:
    public class CST150KLHW8gradeBook {

        
    /**
         * @param args the command line arguments
         */
        
    public static void main(String[] args) {
            
    // TODO code application logic here
        
    }
     private final 
    int NUM_STUDENTS 5;// Holds number of students
     
    private final int NUM_TESTS 4;// Holds number of tests
     
    private String[] names = new String[NUM_STUDENTS]; //Holds students names
     
    private char[] grades = new char[NUM_STUDENTS]; // Holds grades
     
    private double[] scores1 = new double[NUM_TESTS];// Holds score for first test
     
    private double[] scores2 = new double[NUM_TESTS];//Holds score for second test
     
    private double[] scores3 = new double[NUM_TESTS];//Holds score for third test
     
    private double[] scores4 = new double[NUM_TESTS];//Holds score for fourth test
     
    private double[] scores5 = new double[NUM_TESTS];// Holds score for fifth test
     
    public String getName()// Gets students names
     
    public String getTestavg()//Gets the test average
     
    public String getGrade()//Gets the letter grade
     
    {
     public 
    void setName(String n)
    {
    name =  n;
    }
     public 
    String getName()
             return 
    name;
    }
    public 
    void setTest(double t,int i)
    {
    test[i] = t
    }
    public 
    double getTest(int i
    {
    return 
    test[i]; 
    }
    public 
    double getTestAvg(){  
     
    double sum 0;  
    double avg;  
    for(
    int i 0test.lengthi++)  
    {  
    sum += test[i];  
    }  
    avg sum test.length;  
    return 
    avg;  
    }  
    public 
    char getGrade(){  
    double average getTestAvg();  
    char grade=0;  
    if(
    average >= 90)  
    grade 'A';  
    else if (
    average >= 80)  
    grade 'B';  
    else if (
    average >= 70)
    grade 'C';  
    else if (
    average >=60)  
    grade 'D';  
    else if (
    average 60)  
    grade 'F';  
    return 
    grade;  



  2. #2
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    Default Re: Can't find the solution to errors in code

    please paste the error

  3. #3
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    Default Re: Can't find the solution to errors in code

    public String getName()// Gets students names
    public String getTestavg()//Gets the test average
    public String getGrade()//Gets the letter grade

    i get an syntax error about missing method body and ; expected

  4. #4
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    Default Re: Can't find the solution to errors in code

    Quote Originally Posted by ahuang1031 View Post
    public String getName()// Gets students names
    public String getTestavg()//Gets the test average
    public String getGrade()//Gets the letter grade

    i get an syntax error about missing method body and ; expected
    you cannot name a variable with parenthesis.
    please read this Variables (The Java™ Tutorials > Learning the Java Language > Language Basics)
    each statement in java must end with semicolon otherwise you'll get a compilation error

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