Problems
Java Person Teacher 6
Java Person Teacher 6
Implement a class Person.
Implement a class Teacher that extends Person.
class Person
{
protected String Surname, Name;
protected int Age;
Person(String Surname, String Name, int Age) // Constructor
public String toString() // Print Surname Name Age
}
class Teacher extends Person
{
protected String Subject;
protected int Salary;
Teacher(String Surname, String Name, int Age, String Subject, int Salary) // Constructor
Teacher(Teacher a) // Copy Constructor
public String toString() // Print Surname Name Age Subject Salary
}
class ListOfPeople
{
ArrayList<Person> a = new ArrayList<Person>();
public void add(Person p) // Add person p to array list
public int size() // Return size of array list
public String toString() // Print people in array list. Each person print in a separate line
public int getTeachersBudget() // Return the total budget (sum of Salaries) for Teachers
public int getTeachersBudget(String Subject) // Return the total budget (sum of Salaries) for Teachers who runs the subject Subject
public double getTeachersAverageSalary() // Return the average Salary for Teachers
public double getTeachersAverageSalary(String Subject) // Return the average Salary for Teachers who runs the subject Subject
}
List of people will be created:
ListOfPeople list = new ListOfPeople();
Input data will be added to the list. Then next information will be printed:
- total Teachers budget (sum of Salaries for Teachers)
- total Teachers budget who runs Maths
- average Teachers Salary
- average Teachers Salary who runs Physics
System.out.println(list.getTeachersBudget());
System.out.println(list.getTeachersBudget("Math"));
System.out.println(list.getTeachersAverageSalary());
System.out.println(list.getTeachersAverageSalary("Physics"));
Input
Each line contains one of two types of people in the next format:
- PersonSurname Name Age
- TeacherSurname Name Age Subject Salary
Output
Print the next information (each number must be printed in a separate line):
- total Teachers budget (sum of Salaries for Teachers)
- total Teachers budget who runs Maths
- average Teachers Salary
- average Teachers Salary who runs Physics
Input example #1
Person Ivanov Sergey 28 Teacher Petrov Ivan 34 Physics 400 Teacher Babayev Petr 28 Physics 450 Person Lenov Yuriy 21 Teacher Ermolov Kirill 44 Math 400 Teacher Fedoseev Nikita 38 Math 630 Teacher Egorova Dasha 32 Geography 450
Output example #1
2330 1030 466.0 425.0