Tell me different ways to create an object in Java?

The object is a real world entity which has state, behavior and identity. You can say that object is an instance of a class.

Different ways to create an object in Java are as follows:

Using new keyword:

ClassName obj1 = new ClassName();

Using predefined Class class’s newInstance() method:

ClassName obj2 = ClassName.class.newInstance();

Using Constructor class’s newInstance() method:

Constructor constructor = ClassName.class.getConstructor();

ClassName obj3 = constructor.newInstance();

Using clone() method:

ClassName obj4 = (ClassName) obj3.clone();

Using deserialization:

ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(“data.obj”));

out.writeObject(obj4);

ObjectInputStream in = new ObjectInputStream(new FileInputStream(“data.obj”));

ClassName obj5 = (ClassName) in.readObject();