Control Flow Statements in Salesforce Apex

Control flow statements are the backbone of programming logic.  They allow you to direct the execution of your Apex code based on different conditions. In this blog post, we’ll focus on a key type of control flow statement and selection statements.

By reading this blog, you will learn:

• The purpose of selection statements in Apex.
• How to use the ‘if’ statement for basic decision-making.
• Techniques for complex conditions with nested ‘if’ and ‘if-else-if’ structures.
• Scenarios where selection statements improve your Salesforce development.

Let’s get started!

The control flow statements control the flow of the program’s executive orders. This order relies on the condition of logic and the data values.

Types of Control Flow Statements

There are three types of control flow statements in the Salesforce Apex:

• Selection Statements
• Repetition Statements
• Branching Statements.

Selection Statements

• If
• Nested If’s
• the if-else-if ladder

Repetition Statements

• while loops
• do-while loops
• for loops
• for-each loop

Branching Statements

• return statement

Also Read – Primitive Data Types in Salesforce

Selection Statements

If Statement:

• The if case statement is an apex conditional branch explanation. It tends to be utilized in course program execution in two distinct ways.
• Syntax of the if statement is explained as follows:

if (condition) statement1;

else statement;

• Here, every statement might be a solitary assertion or a compound assertion encased in curly supports (that is, a block).
• The condition is any articulation that profits a boolean worth. The else provision is optional.
• It works like this: If the condition is satisfied, then statement is executed. Otherwise, statement will be executed(if it occurs).

Nested If Statement:

• A nested if a case of another if or else. nested ifs are extremely normal in programming.
• Syntax of nested if statement is as follows:

if boolean_expression_1{

/*Executes when the boolean expression 1 is true

if boolean_expression_2{

/*Executes when the boolean expression 2 is true

• Here, the central concern to recollect is that an else statement always refers to the nearest if statement that is within the same block as the else and that is not before associated or related with an else.

The if-else-if Ladder Statement:

• The case statements are executed starting from the top. When one of the conditions controlling if the case meets true, the statement related to that in a case is executed, and the remainder is bypassed.
• On the off chance that none of the conditions is valid, the last else statement will be executed. The else at the last goes about as a default condition; that is, assuming any remaining contingent tests fall flat, the last else statement is performed.
• Assuming there is no last else and any remaining conditions are false, no action will take place. It looks like this:

if(condition) statement;

else if(condition) statement;

else statement;

Conclusion 

Now you have the power of selection statements at your fingertips! Experiment with ‘if’, ‘else if’, and nesting to build more dynamic and responsive Apex code.  Think of all the ways you can streamline processes and create custom logic within your Salesforce org.

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