Encapsulation Example in java

In this tutorial, we will write an encapsulation program in java. Before that, you should have knowledge on the following topic in Java.

• Java Encapsulation

Encapsulation in Java using setter and getter

 class StudentInfo
 {
   private int id;
   private String stdName;
   private int stdAge;

   //Getter methods
   public int geStdiID()
   {
     return id;
   }

   public String getStdName()
   {
     return stdName;
   }

   public int getStdAge()
   {
     return stdAge;
   }

   // Setter methods
   public void geStdiID(int newId)
   {
     id = newId;
   }

   public void getStdName(String newName)
   {
     stdName = newName;
   }

   public void getStdAge(int newAge)
   {
     stdAge = newAge;
   }
 }

 public class EncapsTest
 {
   public static void main(String args[])
   {
     StudentInfo obj = new StudentInfo();

     obj.geStdiID(1101);
     obj.getStdName("Marshall");
     obj.getStdAge(20);

     System.out.println("Student Id: " + obj.geStdiID());
     System.out.println("Student Name: " + obj.getStdName());
     System.out.println("Student Age: " + obj.getStdAge());
   }
 }

Output:

Student Id: 1101
Student Name: Marshall
Student Age: 20