IntroOOP Docs
Fall 2026
API

# Employee

o1.classes.Employee
class Employee(var `name`: String, val `yearOfBirth`: Int, var `monthlySalary`: Double)

The class `Employee` represents employees (in an imaginary accounting app). Each employee has a number of attributes such as name and monthly salary. Most of these attributes are mutable.

## Parameters

monthlySalary

  the monthly salary of the employee, in euros and excluding any incidental costs

name

  the name of the employee

yearOfBirth

  the year the employee was born

## Attributes

Graph
Supertypes
  class Object
  trait Matchable
  class Any

## Members list

### Value members

#### Concrete methods

def ageInYear(`year`: Int): Int

Returns the number of years the employee turns during the given year.

Returns the number of years the employee turns during the given year.

## Attributes

def description: String

Returns a description that contains some basic employee information.

Returns a description that contains some basic employee information.

## Attributes

def monthlyCost(`multiplier`: Double): Double

Returns the monthly cost of the employee to the employer. This figure equals the product of the employee’s monthly salary (e.g., 4000), their working time (e.g., 0.6), and a multiplier for incidental costs (e.g., 1.3).

Returns the monthly cost of the employee to the employer. This figure equals the product of the employee’s monthly salary (e.g., 4000), their working time (e.g., 0.6), and a multiplier for incidental costs (e.g., 1.3).

## Parameters

multiplier

  a multiplier used by the employer to estimate the additional costs of employing a person, apart from their salary

## Attributes

def raiseSalary(`multiplier`: Double): Unit

Modifies the employee’s salary by multiplying it with the given factor. A parameter value of 1.2 will produce a 20% raise, for instance.

Modifies the employee’s salary by multiplying it with the given factor. A parameter value of 1.2 will produce a 20% raise, for instance.

## Attributes

#### Concrete fields

var monthlySalary: Double
var name: String
var workingTime: Double

working time relative to a full week. E.g., 1.0 means a full-time employee and 0.5 a half-timer.

working time relative to a full week. E.g., 1.0 means a full-time employee and 0.5 a half-timer.

## Attributes

val yearOfBirth: Int