public void addRecord(DatabaseContainer db, MyScanner sc) {
int id =
sc.nextInt("Please enter student ID (1000000000 - 1999999999): ", 1000000000, 1999999999);
String fName = sc.nextLine("Please enter student First Name: ", 1, 50);
String lName = sc.nextLine("Please enter student Last Name: ", 1, 50);
int age = sc.nextInt("Please enter student age: ");
boolean sex;
String sexStr = sc.validate("Please enter the student sex (male / female)", "male|female");
if (sexStr.equals("male")) sex = true;
else sex = false;
double GPA = sc.nextDouble("Please enter the student's current GPA (0-100): ", 0.0, 100.0);
Student newStudent = new Student(id, fName, lName, age, sex, GPA);
db.getFile().addStudent(newStudent);
System.out.println("Student added!");
}
public void searchByRange(DatabaseContainer db, MyScanner sc) {
String typeStr =
sc.validate("Please enter which field you want to search (age / gpa): ", "age|gpa");
boolean type;
if (typeStr.equals("age")) type = db.getFile().AGE_TYPE;
else type = db.getFile().GPA_TYPE;
int lo = sc.nextInt("What is the lower range of your search?");
int hi = sc.nextInt("What is the higher ranger of your search?");
ArrayList<Student> results = db.getFile().searchByRange(hi, lo, type);
if (!results.isEmpty()) {
System.out.println("Results found: ");
for (Student s : results) {
System.out.println("**********");
System.out.println(s);
}
} else System.out.println("No results found!");
}
public void editRecord(DatabaseContainer db, MyScanner sc) {
int id =
sc.nextInt("Please enter the id of the student you wish to edit: ", 1000000000, 1999999999);
Student s = db.getFile().getStudent(id);
int choice =
sc.nextInt(
"Please enter the number of the field you wish to edit:"
+ "\n1. ID"
+ "\n2. First Name"
+ "\n3. Last Name"
+ "\n4. Age"
+ "\n5. Sex"
+ "\n6. Current GPA",
1,
6);
if (choice == 1) {
s.setID(
sc.nextInt(
"Please enter student ID (1000000000 - 1999999999): ", 1000000000, 1999999999));
} else if (choice == 2) {
s.setFirstName(sc.nextLine("Please enter student First Name: ", 1, 50));
} else if (choice == 3) {
s.setLastName(sc.nextLine("Please enter student Last Name: ", 1, 50));
} else if (choice == 4) {
s.setAge(sc.nextInt("Please enter student age: "));
} else if (choice == 5) {
boolean sex;
String sexStr = sc.validate("Please enter the student sex (male / female)", "male|female");
if (sexStr.equals("male")) sex = true;
else sex = false;
s.setSex(sex);
} else if (choice == 6) {
s.setCurrentGPA(
sc.nextDouble("Please enter the student's current GPA (0-100): ", 0.0, 100.0));
}
System.out.println("Record Edited!");
}