public class LabProgram { public static void main(String args[]) { Course cis162 = new Course(); int beforeCount; String toDrop; // Example students for testing cis162.addStudent(new Student("Henry", "Nguyen", 3.5)); cis162.addStudent(new Student("Brenda", "Stern", 2.0)); cis162.addStudent(new Student("Lynda", "Robison", 3.2)); cis162.addStudent(new Student("Sonya", "King", 3.9)); toDrop = "Stern"; beforeCount = cis162.countStudents(); cis162.dropStudent(toDrop); System.out.println("Course size: " + beforeCount + " students"); System.out.println("Course size after drop: " + cis162.countStudents() + " students"); } }
public class LabProgram { public static void main(String args[]) { Course cis162 = new Course(); int beforeCount; String toDrop; // Example students for testing cis162.addStudent(new Student("Henry", "Nguyen", 3.5)); cis162.addStudent(new Student("Brenda", "Stern", 2.0)); cis162.addStudent(new Student("Lynda", "Robison", 3.2)); cis162.addStudent(new Student("Sonya", "King", 3.9)); toDrop = "Stern"; beforeCount = cis162.countStudents(); cis162.dropStudent(toDrop); System.out.println("Course size: " + beforeCount + " students"); System.out.println("Course size after drop: " + cis162.countStudents() + " students"); } }
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
public class LabProgram {
public static void main(String args[]) {
Course cis162 = new Course();
int beforeCount;
String toDrop;
// Example students for testing
cis162.addStudent(new Student("Henry", "Nguyen", 3.5));
cis162.addStudent(new Student("Brenda", "Stern", 2.0));
cis162.addStudent(new Student("Lynda", "Robison", 3.2));
cis162.addStudent(new Student("Sonya", "King", 3.9));
toDrop = "Stern";
beforeCount = cis162.countStudents();
cis162.dropStudent(toDrop);
System.out.println("Course size: " + beforeCount + " students");
System.out.println("Course size after drop: " + cis162.countStudents() + " students");
}
}
import java.text.DecimalFormat;
// Class representing a student
public class Student {
private String first; // first name
private String last; // last name
private double gpa; // grade point average
// Student class constructor
public Student(String f, String l, double g) {
first = f; // first name
last = l; // last name
gpa = g; // grade point average
}
public double getGPA() {
return gpa;
}
public String getLast() {
return last;
}
// Returns a String representation of the Student object, with the GPA formatted to one decimal
public String toString() {
DecimalFormat fmt = new DecimalFormat("#.0");
return first + " " + last + " " + fmt.format(gpa);
}
}
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