Can we create a class inside a method in Java?

Can we create a class inside a method in Java?

The Java programming language allows you to define a class within another class. Non-static nested classes (inner classes) have access to other members of the enclosing class, even if they are declared private. Static nested classes do not have access to other members of the enclosing class.

Is it possible to create a local class in a method?

You can define a local class in a method body, a for loop, or an if clause. They are similar to Inner class, because they cannot define or declare any static members. Also they are non-static because they have access to instance members of the enclosing block.

Can an inner class declared inside of a method access local variables of this method?

Yes, we can access the local final variables using the method local inner class because the final variables are stored on the heap and live as long as the method local inner class object may live.

Can inner class access outer class method?

It can access any private instance variable of the outer class. Like any other instance variable, we can have access modifier private, protected, public, and default modifier.

What are the rules for inner classes in Java?

Rules of Local Inner Class:

• The scope of the local inner class is restricted to the block they are defined in.
• A local inner class cannot be instantiated from outside the block where it is created in.
• Till JDK 7, the Local inner class can access only the final local variable of the enclosing block.

How many times can classes be nested within a class?

A class can be nested up to any depth; there is no practical limit, but a class nested deeper that two is almost always unnecessary.,A nested class also can be declared locally within a block as well, such as seen in the following example:,The following example illustrates how to declare inner classes.

Is Java class local?

A local class is declared locally within a block of Java code, rather than as a member of a class. Typically, a local class is defined within a method, but it can also be defined within a static initializer or instance initializer of a class. For this reason, local classes share many of the features of member classes.

Can we use Non final local variable inside a local inner class?

A local inner class cannot be instantiated from outside the block where it is created in. Till JDK 7, the Local inner class can access only the final local variable of the enclosing block. However, From JDK 8, it is possible to access the non-final local variable of enclosing block in the local inner class.

What are the two ways to create an anonymous inner class?

Java Anonymous inner class can be created in two ways:

1. Class (may be abstract or concrete).
2. Interface.

Can a class be private in C++?

Private: The class members declared as private can be accessed only by the member functions inside the class. They are not allowed to be accessed directly by any object or function outside the class. Only the member functions or the friend functions are allowed to access the private data members of a class.