encapsulation in java ( set and get) with examples

encapsulation is a way to hide data from another programmers, and to put restrictions on them to access it,

here is an example of set and get in java:

class Employee {

 private int id;
 private String name;
 private double basicsalary;
 private double allowances;
 private boolean is_male;
 
 public int getId()
 {
  return id;
 }

 public String getName()
 {
  return name;
 }
 public double getSalary()
 {
  return basicsalary;
 }
 public double getAllowances()
 {
  return allowances;
 }

 public String getGender()
 {
  if(is_male==true)
  return "male";
  else return "female";
 }
 
 public void setId(int i)
 {
  id=i;
 }

 public void setName(String x)
 {
  name=x;
 }
 public void setBasicSalary(double v)
 {
  basicsalary=v;
 }
 public void setAllowances(double f)
 {
  allowances=f;
 }
 public void setGender(String gender)
 {
  if(gender=="male")
     is_male=true;
  else  if(gender=="female")
     is_male=false;
   else
     System.out.println("error");
 }
}

/**********************************************
***********************************************/
class EmployeeManagement {

 public static void main(String[] args) {
  // TODO Auto-generated method stub

  Employee emp=new Employee();
  
  int empid = emp.getId();
  System.out.println(empid);
  emp.setId(1);
  emp.setName("adam");
  emp.setBasicSalary(3000);
  emp.setAllowances(120);
  emp.setGender("male");
System.out.println("employee info is: \n----------------------------");

System.out.println("id:"+emp.getId());
System.out.println("name:"+emp.getName());
System.out.println("basic salary :"+emp.getSalary());
System.out.println("allowances:"+emp.getAllowances());
System.out.println("total salary:"+(emp.getSalary()+emp.getAllowances()));
System.out.println("gender :"+emp.getGender()); 
 }
}