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Solution Review: Implement the Complete Student Class

Explore how to implement a complete Student class in Java by applying data hiding principles. Learn to create and use accessor and mutator methods to encapsulate fields like name and roll number, ensuring controlled access and modification within a class.

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Solution #

Java
// Student Class
class Student {
  // Private Fields
  private String name;
  private String rollNumber;
  public Student(){
    name = "Unknown";
    rollNumber = "N/A";
  }
  // getter function for name
  public String getName() {
    return name;  
  }
  // setter function for name
  public void setName(String x) {
    this.name = x;
  }
  // getter function for roll number
  public String getRollNumber() {
    return this.rollNumber;  
  }
  // setter function for roll number
  public void setRollNumber(String x) {
    this.rollNumber = x;
  }
}
public class main
{
	public static void main(String[] args) {
    Student x = new Student();
    System.out.println(x.getName());
    x.setName("Samantha");
    String student_name = x.getName();
    System.out.println(student_name);
    System.out.println(x.getRollNumber());
    x.setRollNumber("2211");
    String student_rollnum = x.getRollNumber();
    System.out.println(student_rollnum);
   
	}
}

Explanation

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