Tag: Java class exercises

Rule for Local Variable Local variables cannot use any of the access level since their scope is only inside the method . Final is the Only Non Access Modifier that can be applied to a local variable. Local variables are not assigned a default value, hence they need to be initialized.

Rules of Local Inner Class:

inner class: Can only exist withing the instance of its enclosing class. Has access to all members . local class: class declared in a block. It is like an inner class (has access to all members) but it also has access to local scope.

A class i.e., created inside a method , is called local inner class in java. Local Inner Classes are the inner classes that are defined inside a block. Generally, this block is a method body. Sometimes this block can be a for loop, or an if clause. Local Inner classes are not a member of any enclosing classes.

Local classes are similar to inner classes because they cannot define or declare any static members . Local classes in static methods, such as the class PhoneNumber , which is defined in the static method validatePhoneNumber , can only refer to static members of the enclosing class.

Local class: Use it if you need to create more than one instance of a class, access its constructor, or introduce a new, named type (because, for example, you need to invoke additional methods later). Anonymous class: Use it if you need to declare fields or additional methods.