Contents
What is the apex function?
Its main function is to deliver blood, with very low pressure, to the lungs through the pulmonary artery. The deoxygenated blood is sent to the right ventricle from the right atrium.
What is transient variable in Apex?
Use the transient keyword to declare instance variables that can’t be saved, and shouldn’t be transmitted as part of the view state for a Visualforce page.
What part of the body is Apex?
The apex is the pointed tip of the heart. It is located on the lower portion of the heart (left ventricle).
What is the difference between static and transient?
The main difference between the two ( static versus transient ) is that static variables exist only once per transaction, but transient variables can exist many times. In other words, static variables have a global scope, while transient variables have a local scope.
When to use a local variable in apex?
A local variable that can be used as a replacement for a specified expression within the body of the component. Use to reduce repetitive and verbose expressions within a page. Use this component to get user input for a controller method that does not correspond to a field on an sObject.
How does the input textarea work in apex?
The keyboard access key that puts the text area in focus. When the text area is in focus, a user can enter a value. The width of the field, as expressed by the number of characters that can display in a single row at a time. The direction in which the generated HTML component should be read.
Can a variable in apex be treated as null?
Note that all the variables are assigned with the value null. You can declare the variables in Apex like String and Integer as follows − This means that the code given below will throw an error since the variable ‘m’ has been declared two times and both will be treated as the same.
What are the primitive data types in apex?
Apex supports the following data types − Primitive (Integer, Double, Long, Date, Datetime, String, ID, or Boolean) Classes, Objects and Interfaces (To be covered in Chapter 11, 12 and 13) In this chapter, we will look at all the Primitive Data Types, sObjects and Enums.