Here is a simple implementation of the problem in Java using inheritance.

First, we create a base class `Student`:

```java
public class Student {
String name;
int registerNumber;
int totalWorkingDays;
int daysPresent;

public Student(String name, int registerNumber, int totalWorkingDays, int daysPresent) {
this.name = name;
this.registerNumber = registerNumber;
this.totalWorkingDays = totalWorkingDays;
this.daysPresent = daysPresent;
}

public double calculateAttendancePercentage() {
return (double) daysPresent / totalWorkingDays * 100;
}
}
```

Then, we create a derived class `InternalMarkCalculator`:

```java
public class InternalMarkCalculator extends Student {
public InternalMarkCalculator(String name, int registerNumber, int totalWorkingDays, int daysPresent) {
super(name, registerNumber, totalWorkingDays, daysPresent);
}

public int calculateMarks() {
double attendancePercentage = calculateAttendancePercentage();
if (attendancePercentage = 90) {
return 5;
} else if (attendancePercentage = 80) {
return 4;
} else if (attendancePercentage = 75) {
return 3;
} else {
return 0;
}
}
}
```

Finally, we can use these classes in a main method:

```java
public class Main {
public static void main(String[] args) {
InternalMarkCalculator student = new InternalMarkCalculator("John Doe", 123, 180, 170);
System.out.println("Student " + student.name + " gets " + student.calculateMarks() + " marks for attendance.");
}
}
```

This program will calculate the attendance percentage and award marks based on the given conditions.

Question

Here is a simple implementation of the problem in Java using inheritance.

First, we create a base class `Student`:

```java
public class Student {
    String name;
    int registerNumber;
    int totalWorkingDays;
    int daysPresent;

public Student(String name, int registerNumber, int totalWorkingDays, int daysPresent) {
        this.name = name;
        this.registerNumber = registerNumber;
        this.totalWorkingDays = totalWorkingDays;
        this.daysPresent = daysPresent;
    }

public double calculateAttendancePercentage() {
        return (double) daysPresent / totalWorkingDays * 100;
    }
}
```

Then, we create a derived class `InternalMarkCalculator`:

```java
public class InternalMarkCalculator extends Student {
    public InternalMarkCalculator(String name, int registerNumber, int totalWorkingDays, int daysPresent) {
        super(name, registerNumber, totalWorkingDays, daysPresent);
    }

public int calculateMarks() {
        double attendancePercentage = calculateAttendancePercentage();
        if (attendancePercentage >= 90) {
            return 5;
        } else if (attendancePercentage >= 80) {
            return 4;
        } else if (attendancePercentage >= 75) {
            return 3;
        } else {
            return 0;
        }
    }
}
```

Finally, we can use these classes in a main method:

```java
public class Main {
    public static void main(String[] args) {
        InternalMarkCalculator student = new InternalMarkCalculator("John Doe", 123, 180, 170);
        System.out.println("Student " + student.name + " gets " + student.calculateMarks() + " marks for attendance.");
    }
}
```

This program will calculate the attendance percentage and award marks based on the given conditions.

Knowee AI · Accepted Answer