Declaring and Instantiating Java Objects

In Java, an object is an instance of a class. To create an object, you need to:

• Declare a variable: This variable will hold the reference to the object.
• Instantiate the object: This is done using the new keyword followed by the class constructor.

// Declare a variable of type MyClass
MyClass myObject; 

// Instantiate the object using the new keyword and the MyClass constructor
myObject = new MyClass();

Nested Classes

Java allows you to define classes within other classes. These are called nested classes. There are two types:

• Static nested classes: These behave like regular top-level classes.
• Inner classes: These have access to the members of the enclosing class.

class OuterClass {
    // ...

    class InnerClass {
        // ...
    }
}

// Instantiating an inner class object
OuterClass outerObject = new OuterClass();
OuterClass.InnerClass innerObject = outerObject.new InnerClass();