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CAVITE STATE UNIVERSITY
T3 CAMPUS
Department of Information Technology COSC 65 – Programming Languages

Simple example of Encapsulation in Java
Let’s see the simple example of encapsulation that has only one field with its setter
and getter methods.

// A Java class which is a fully encapsulated class.
// It has a private data member and getter and setter methods.

class Student {
private String Name;
public String getName(){
return Name;
}
public void setName(String name){
Name = name;
}
}
public class JavaApplication1 {
public static void main(String[] args) {

Student Student1 = new Student(); // creating the object of the class Student
Student1.setName("Christian"); // setting name as ‘Christian’ using method setName()
System.out.println(Student1.getName()); // calling the method getName()
}
}

// A Java class which has only getter method / THIS IS A READ-ONLY CLASS
class Student {
private String college = “DIT”;

public String getCollege() {
return college;
}
}
// Now, you can’t change the value of the college data member which is “DIT”.

// A Java class which has only getter method / THIS IS A READ-ONLY CLASS
class Student {
private String college = “DIT”;

public String getCollege() {
return college;
}
}
// Now, you can’t change the value of the college data member which is “DIT”.

// A Java class which has only setter method / THIS IS A WRITE-ONL CLASS
class Student {
private String College;
public void setCollege(String college) {
College = college;
}
} // now you can’t get the value of the college, you can only change the value of college data
member

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