How do you access the outer class variable in an inner class in Apex?

How do you access the outer class variable in an inner class in Apex?

If you want your inner class to access outer class instance variables then in the constructor for the inner class, include an argument that is a reference to the outer class instance. The outer class invokes the inner class constructor passing this as that argument.

How do you access the inner class from code within the outer class?

Nested Inner class can access any private instance variable of outer class. Like any other instance variable, we can have access modifier private, protected, public and default modifier. Like class, interface can also be nested and can have access specifiers.

What is an inner class apex?

In Apex, you can define top-level classes (also called outer classes) as well as inner classes, that is, a class defined within another class. You can only have inner classes one level deep.

Can inner class access outer class variables C++?

5 Answers. An inner class is a friend of the class it is defined within. So, yes; an object of type Outer::Inner can access the member variable var of an object of type Outer .

Can static inner class access outer class variables?

Unlike inner class, a static nested class cannot access the member variables of the outer class. It is because the static nested class doesn’t require you to create an instance of the outer class.

Can you use inner classes like static classes in apex?

Although the syntax of Apex is Java like and the underlying code execution is based on a JVM this is not a like-for-like case. In Apex there are no calss modifiers applicable on inner classes. Hence you can access inner class like static classes and still instantiate objects.

How to create a map class in apex?

Creates a new instance of the Map class and populates it with the passed-in list of sObject records. The keys are populated with the sObject IDs and the values are the sObjects. Creates a new instance of the Map class. T1 is the data type of the keys and T2 is the data type of the values.

What are the types of map keys in apex?

In map Keys can be any primitive data type like string, integer,decimal, Id while values can be a primitive, sObject, collection type or an Apex object. Map keys and values can be of any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex types. Map keys of type String are case-sensitive.

Which is an example of an apex object?

A map is a collection of key-value pairs where each unique key maps to a single value. In map Keys can be any primitive data type like string, integer,decimal, Id while values can be a primitive, sObject, collection type or an Apex object.