Final Project: Student Management Program
Combine variables, classes, methods, arrays and decision-making to build a small student management program.
Java Code
Study the example and understand what each part does.
import java.util.ArrayList;
class Student {
String name;
int age;
double marks;
Student(String name, int age, double marks) {
this.name = name;
this.age = age;
this.marks = marks;
}
void display() {
System.out.println("Name: " + name);
System.out.println("Age: " + age);
System.out.println("Marks: " + marks);
if (marks >= 70) {
System.out.println("Grade: A");
} else if (marks >= 60) {
System.out.println("Grade: B");
} else if (marks >= 50) {
System.out.println("Grade: C");
} else {
System.out.println("Grade: D");
}
}
}
public class Main {
public static void main(String[] args) {
ArrayList<Student> students =
new ArrayList<>();
students.add(
new Student("Brian", 18, 78)
);
students.add(
new Student("Mary", 19, 85)
);
students.add(
new Student("John", 18, 62)
);
for (Student student : students) {
student.display();
System.out.println("----------------");
}
}
}Java code normally runs using the Java Development Kit on a computer, Android Studio or another Java development environment. This course page presents the code examples without pretending that the browser is running Java directly.
Expected Output / Result
Name: Brian Age: 18 Marks: 78.0 Grade: A ---------------- Name: Mary Age: 19 Marks: 85.0 Grade: A ---------------- Name: John Age: 18 Marks: 62.0 Grade: B ----------------
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