在下面的Java程序中我们用5种方式来创建 Employee对象。

ObjectCreation {    public static void main(String... args) throws Exception {        // By using new keyword        Employee emp1 = new Employee();        emp1.setName("Naresh");        System.out.println(emp1 + ", hashcode : " + emp1.hashCode());        // By using Class class's newInstance() method        Employee emp2 = (Employee) Class.forName("org.programming.mitra.exercises.Employee")                               .newInstance();        // Or we can simply do this        // Employee emp2 = Employee.class.newInstance();        emp2.setName("Rishi");        System.out.println(emp2 + ", hashcode : " + emp2.hashCode());        // By using Constructor class's newInstance() method        Constructor
    
      constructor = Employee.class.getConstructor();        Employee emp3 = constructor.newInstance();        emp3.setName("Yogesh");        System.out.println(emp3 + ", hashcode : " + emp3.hashCode());        // By using clone() method        Employee emp4 = (Employee) emp3.clone();        emp4.setName("Atul");        System.out.println(emp4 + ", hashcode : " + emp4.hashCode());        // By using Deserialization        // Serialization        ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("data.obj"));        out.writeObject(emp4);        out.close();        //Deserialization        ObjectInputStream in = new ObjectInputStream(new FileInputStream("data.obj"));        Employee emp5 = (Employee) in.readObject();        in.close();        emp5.setName("Akash");        System.out.println(emp5 + ", hashcode : " + emp5.hashCode());    }}