private variable

class Employee1
{
 private int empId;

 public int getEmpId() {
  return empId;
 }

 public void setEmpId(int empId) {
  this.empId = empId;
 }
 
}
public class Test_private_variable {

 public static void main(String[] args) {

  Employee1 employee;
  employee=new Employee1();
  employee.setEmpId(123);
  System.out.println(employee.getEmpId());
  

 }

}