La clase es la colección de objetos. La clase no es una entidad del mundo real, son solo plantillas y prototipos o planos. La clase no ocupa memoria. Podemos escribir una clase personalizada según nuestra elección con fines ilustrativos; se muestra un ejemplo en el programa a continuación como una clase auxiliar.
Ejemplo:
Java
// Java Program to Creating our Own Custom Class
// Importing input output classes
import java.io.*;
// Class 1
// Helper class
class Employee {
// Member variables of this class
// first attribute
int id;
// second attribute
int salary;
// third attribute
String name;
// Member function of this class
// Method 1
public void printDetails()
{
// Print and display commands
System.out.println("My id is " + id);
System.out.println("This is my name " + name);
}
// Method 2
public int getSalary()
{
// Simply returning the salary
return salary;
}
}
// Class 2
// Main class
class Custom {
// Main driver method
public static void main(String[] args)
{
// Display message only
System.out.println("This is the custom class");
// Creating object of custom class in the main()
// method Instantiating a new Employee object
Employee harry = new Employee();
// Again creating object of custom class and
// instantiating a new Employee object
Employee robin = new Employee();
// Initializing values for first object created
// above
harry.id = 23;
harry.salary = 100000;
harry.name = "Ritu bhatiya";
// Initializing values for second object created
// above
robin.id = 25;
robin.salary = 150000;
robin.name = "Amit thripathi";
// Printing object attributes by
// calling the method as defined in our class
harry.printDetails();
robin.printDetails();
// Calling the method again of our class and
// storing it in a variable
int salary = robin.getSalary();
// Print and display the above salary
System.out.println("Salary of robin : " + salary
+ "$");
System.out.println("ID : " + harry.id);
}
}
Producción
This is the custom class My id is 23 This is my name Ritu bhatiya My id is 25 This is my name Amit thripathi Salary of robin : 150000$ ID : 23
Publicación traducida automáticamente
Artículo escrito por bhatiyaritu1122 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA