encapsulation in java programs

// java program on encapsulation
class EncapsulationExample
{
   private int ID;
   private String stuName;
   private int stuAge;
   // getter and setter methods
   public int getStudentID()
   {
      return ID;
   }
   public String getStudentName()
   {
      return stuName;
   }
   public int getStudentAge()
   {
      return stuAge;
   }
   public void setStudentAge(int number)
   {
      stuAge = number;
   }
   public void setStudentName(String number)
   {
      stuName = number;
   }
   public void setStudentID(int number)
   {
      ID = number;
   }
}
public class ExampleForEncapsulation
{
   public static void main(String[] args)
   {
      EncapsulationExample student = new EncapsulationExample();
      student.setStudentName("Virat");
      student.setStudentAge(5);
      student.setStudentID(2353);
      System.out.println("Student Name: " + student.getStudentName());
      System.out.println("Student ID: " + student.getStudentID());
      System.out.println("Student Age: " + student.getStudentAge());
   }
}

// Java program to demonstrate encapsulation 
public class Encapsulate 
{ 
    // private variables declared  
    // these can only be accessed by  
    // public methods of class 
    private String geekName; 
    private int geekRoll; 
    private int geekAge; 
  
    // get method for age to access  
    // private variable geekAge 
    public int getAge() { 
      return geekAge; 
    } 
   
    // get method for name to access  
    // private variable geekName 
    public String getName() { 
      return geekName; 
    } 
      
    // get method for roll to access  
    // private variable geekRoll 
    public int getRoll() { 
       return geekRoll; 
    } 
   
    // set method for age to access  
    // private variable geekage 
    public void setAge( int newAge) { 
      geekAge = newAge; 
    } 
   
    // set method for name to access  
    // private variable geekName 
    public void setName(String newName) { 
      geekName = newName; 
    } 
      
    // set method for roll to access  
    // private variable geekRoll 
    public void setRoll( int newRoll) { 
      geekRoll = newRoll; 
    } 
} 

public class TestEncapsulation {     
    public static void main (String[] args) { 
        Encapsulate obj = new Encapsulate(); 
          
        // setting values of the variables  
        obj.setName("Harsh"); 
        obj.setAge(19); 
        obj.setRoll(51); 
          
        // Displaying values of the variables 
        System.out.println("Geek's name: " + obj.getName()); 
        System.out.println("Geek's age: " + obj.getAge()); 
        System.out.println("Geek's roll: " + obj.getRoll()); 
          
        // Direct access of geekRoll is not possible 
        // due to encapsulation 
        // System.out.println("Geek's roll: " + obj.geekName);         
    } 
}