[Solved] how to solve my errors in my code about online test to be like in the pdf file? [closed]

by


Hi!This is your code without errors!

So, I changed somethings, I’ll list them to get clearer.

  1. To use “Name” and “Id” in more than one method, it is easier if they are global variables.
  2. When calling the “test” method you need to pass the values, so in the “entry” method the values are passed.
  3. The “printData” method is called within “results” to receive the value of “totalScores”
  4. Also in the “results” method to calculate the value of “percentage” you must divide by the number of scores, which in this case is 3

  5. The methods need to be static, just the test method. In the test method, a class must be instantiated to test the class itself.

    import java.util.Scanner;

public class OnlineTest {       
String name;
double id;

public void entry() {
    Scanner input = new Scanner(System.in);
    System.out.println("Please, Enter Your  Full Name :");
    name = input.nextLine();
    System.out.println("Please, Enter your Test Registration ID :");
    id = input.nextDouble();

    System.out.println(" . . . Starting Test\n");

    test(0, 0, 0);
}

public void test(double score1, double score2, double score3) {
    String answer;
    Scanner input = new Scanner(System.in);

    System.out.println("- Choose the Correct Answer:\n");

    do {
        System.out.println("a. Which Utility is used to compile Java applications?\n" + "   1. javaw\n"
                + "   2. java\n" + "   3. javac ");
        answer = input.next();
    } while (!answer.equals("1") && !answer.equals("2") && !answer.equals("3"));

    if (answer.equals("3")) {
        score1 = 100;
    } else if (!answer.equals("3")) {
        score1 = 0;
    }

    do {
        System.out.println(
                "b. Which is a restriction when using a switch statement? \n" + "   1. Characters cannot be used\n"
                        + "   2. Doubles cannot be used\n" + "   3. Integers can not be used");
        answer = input.next();
    } while (!answer.equals("1") && !answer.equals("2") && !answer.equals("3"));

    if (answer.equals("1")) {
        score2 = 100;
    } else if (!answer.equals("1")) {
        score2 = 0;
    }

    do {
        System.out.println("c. What is the range of byte data type in Java?  \n" + "   1. -128 to 127\n"
                + "   2. -32768 to 32767\n" + "   3. -2147483648 to 2147483647");
        answer = input.next();
    } while (!answer.equals("1") && !answer.equals("2") && !answer.equals("3"));

    if (answer.equals("1")) {
        score3 = 100;
    } else if (!answer.equals("1")) {
        score3 = 0;
    }

    double totalscores = score1 + score2 + score3;
    results(totalscores);

}

public void results(double totalscores) {

    double percentage = (totalscores) / 3;
    printData(percentage);
}

public void printData(double percentage) {

    System.out.println("-----------------------");

    System.out.println("\tJava Certification\n" + "\t   Test Results\n");

    System.out.println("Name : " + name);
    System.out.println("Test Registration ID:" + id);

    System.out.println("Passing Score 52% ");
    System.out.println("Your Score : " + percentage + "% \n");

    System.out.println("Max Score --------------------100%\r\n" + "Passing Score -----------52");

}

public static void main(String[] args) {
    OnlineTest onlineTest = new OnlineTest();
    onlineTest.entry();

}
}

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solved how to solve my errors in my code about online test to be like in the pdf file? [closed]