How to Create Object in Java

Java?provides five ways to create an object.

1.Using?new?Keyword

ClassName?object?=?new?ClassName();??

2.Using?clone()?method

The?clone()?method is the method of?Object?class. It creates a copy of an object and returns the same copy. The?JVM?creates a new object when the clone() method is invoked.

3.Using?newInstance()?method of the?Class?class

The?newInstance()?method of the Class class is also used to create an object. It calls the default constructor to create the object.?

?Syntax: protected?Object?clone()?throws?CloneNotSupportedException?

Example : ClassName?object?=?ClassName.class.newInstance();??

4.Using?newInstance()?method of the?Constructor?class

It is similar to the?newInstance()?method of the?Class?class. It is known as a reflective way to create objects.

Example: Constructor<Employee>?constructor?=?Employee.class.getConstructor();???

Employee?emp3?=?constructor.newInstance();??

5.Using?Deserialization

Deserialization?is the process of converting byte-stream to object.?

The JVM creates a new object when we serialize or deserialize an object.

The method?readObject()?of?ObjectInputStream?class is used to deserialize an object. It references objects out of a stream.

Syntax:

public?final?Object?readObject()?throws?IOException,ClassNotFoundException