Answer:
Step-by-step explanation:
The following is written in Java and creates the Employee class with the variables requested and a getter setter method for each variable
package sample; 
 
public class Employee { 
 private String lastName, firstName, idNumber; 
 
 public void Employee() { 
 } 
 
 public String getLastName() { 
 return lastName; 
 } 
 
 public void setLastName(String lastName) { 
 this.lastName = lastName; 
 } 
 
 public String getFirstName() { 
 return firstName; 
 } 
 
 public void setFirstName(String firstName) { 
 this.firstName = firstName; 
 } 
 
 public String getIdNumber() { 
 return idNumber; 
 } 
 
 public void setIdNumber(String idNumber) { 
 this.idNumber = idNumber; 
 } 
}