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Mga lods pa help naman sa java

Alieson09

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Aug 30, 2021
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mga lods ano error ko dyan diko masolve eh
Java:
package labexer5b;
import java.lang.Exception;
import java.util.Scanner;
class NumberOrSpecialCharacterException extends Exception { //Custom Exception
    public NumberOrSpecialCharacterException() {
        super("[Special Characters or Numbers is not allowed.]");
    }
}
class ExceedLetterException extends Exception { //Custom Exception
    public ExceedLetterException() {
        super("[Choices are only A , B , C.]");
    }
}
public class LabExer5B {
public static Scanner Input = new Scanner(System.in);   //Main Variables
public static String Enter; 
public static int Block = 1;
public static int Page = 1;
private int Score = 0;
public static boolean WhileStop = true;
public static String ChoicesAndQuestions[][][] = { { //Uses 3D Array for easy accesible
    {"1. What is the Brain or Heart of a Computer?"},  // Questions
    {"2. Which is a small device used to save and store computer files?"},
    {"3. Who is the one of the Inventor of Microsoft Windows? "},
    {"4. What is example of Input Device?"},
    {"5. What is primary storage of computer? "},
    {"6. Windows 3 was released in which year?"},
    {"7. What cable does an Ethernet port or Lan port need?"},
    {"8. Can computer still boot without storage drive? "},
    {"9. Can you run an Operating System to a flash drive?"},
    {"10.What Animal makes the sound woof?"}
},
    {
        {"A. CPU","B. APU","C. Processor"}, // Multiple Choices
        {"A. USB","B. Flash Drive","C. Optical Drive"},
        {"A. Paul Allen","B. Linus Torvalds","C. Steve Jobs"},
        {"A. Cat","B. Dog","C. Mouse"},
        {"A. RAM","B. Hard Disk Drive","C. Flash Drive"},
        {"A. 2021","B. 1961","C. 1991"},
        {"A. Cat","B. Dog","C. Mouse"},
        {"A. Yes","B. No","C. Maybe"},
        {"A. Yes","B. No","C. Maybe"},
        {"A. Cat","B. Dog","C. Mouse"},
        {"A","B","C"} // Checker OR Choices.
    }
};
public void SetScore(int Score){ // Setter and Getter for Private Score
    this.Score = Score;
}
public int GetScore() {
    return Score;
}
public static int IsNumber(String a) { // Check if numeric is string uses try catch
try {
    Integer.parseInt(a);
    return 1;
    }
catch (NumberFormatException e) {
    return 0;
    }
}
public static boolean CheckAlphabetic(String s) { //check if letter is include in alphabet
    for (int i = 0; i < s.length(); i++) {
        char c = s.charAt(i);
        if (!(c >= 'A' && c <= 'Z') && !(c >= 'a' && c <= 'z')) {
            return false;
        }
    }
    return true;
}
public static boolean AnswersChecker(String Enter) { //Return boolean value this method helps minimize code lines
if (CheckInput(Enter) == true) {
    return true;
}
else if (CheckInput(Enter) == false) {
    System.out.println("Do you want to try again? (yes) or (no)");
    Enter = Input.nextLine();
        if (Enter.equalsIgnoreCase("yes") || Enter.equalsIgnoreCase("y")) {
            System.out.println("------------------------------------------------------------------");
            System.out.println("[Back to the last Question.]");
        }
        else if (Enter.equalsIgnoreCase("no") || Enter.equalsIgnoreCase("n")) {
            System.out.println("[Okay bye.] Exitting...");
            WhileStop = false;
        }
        else {
            System.out.println("[Your answer didn't equal.] Exitting...");
            WhileStop = false;
        }
    }
    return false;
}
public static boolean CheckInput(String a){ //Return boolean value this method helps minimize code lines
    Enter = a.trim();
     for (int i = 0; i < 3; i++) {
        try {
            if (Enter.equalsIgnoreCase(ChoicesAndQuestions[1][10][i])) {                     
                return true;
            }
            else if (CheckAlphabetic(Enter) == true && (!(Enter.equalsIgnoreCase("A") || Enter.equalsIgnoreCase("B") || Enter.equalsIgnoreCase("C") || Enter.equals("")))) {
                throw new ExceedLetterException();  //throw a exception to catch the error of the invalid that didn't include in ABC Choices.
            }
            else if (IsNumber(Enter) == 1 || CheckAlphabetic(Enter) == false) {
                throw new NumberOrSpecialCharacterException(); //throw a exception to catch if the user input a numbers or special characters.
            }
            else if (Enter.isEmpty()) {
                throw new NullPointerException(); //throw a exception to catch if the user input a blank or space character.
            }
        }
        catch (NullPointerException e) {
            if (Block == 1) {
                Block = 0;
                System.out.println("[The Answer cannot be blank.]");  //Give error message from NullPointerException
            }
        }
        catch (NumberOrSpecialCharacterException e) { //Give error message from NumberOrSpecialCharacterException a custom exception
            if (Block == 1) {
                Block = 0;
                System.out.println(e.getMessage());
            }
        }
 
Last edited:

Alieson09

Limited Access
ilagay mo nadin kaya error
Screenshot (12).png

ayan error lods
 

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