How to Create Object in Java

Situatie

The object is a basic building block of an OOPS language. In Java, we cannot execute any program without creating an object. There is various way to create an obiect in java that we will discuss in this section, and also learn how to create an object in Java.

java provides five ways to create an object.

Using new Keyword
Using clone() method
Using newInstance() method of the Class class
Using newInstance() method of the Constructor class
Using Deserialization

Using new Keyword

Using the new keyword is the most popular way to create an object or instance of the class. When we create an instance of the class by using the new keyword, it allocates memory (heap) for the newly created object and also returns the reference of that object to that memory. The new keyword is also used to create an array. The syntax for creating an object is:

Using new Keyword
Using clone() method
Using newInstance() method of the Class class
Using newInstance() method of the Constructor class
Using Deserialization

Backup

ClassName object = new ClassName();

Let’s create a program that uses new keyword to create an object.

CreateObjectExample1.java

public class CreateObjectExample1
{
void show()
{
System.out.println(“Welcome to javaTpoint”);
}
public static void main(String[] args)
{
//creating an object using new keyword 
CreateObjectExample1 obj = new CreateObjectExample1();
//invoking method using the object
obj.show();
}
}

Output:

Welcome to javaTpoint

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