Apex Control Structures Part 1 : Introduction | Salesforce Development

                    In this video, we will see Apex Control Structures Part 1 : Introduction | Salesforce Development. 

Control Structures in Apex

è     These are the structures in programming languages which control the flow of execution of statements.

 

Types of Control Structures

1.  Sequence Structure

2.  Selection Structure

3.  Loop Structure

 

1.  Sequence Structure

e.g.

integer a=3, b=4;

integer c;

c=a+b;

system.debug('Addition:'+c);

 

2.  Selection Structure

 

How is it implemented in Apex?

1.  Simple if

2.  If else

3.  Nested if

4.  Else if Ladder

 

 

 

How is it implemented in Apex?

By using switch when

 

  

3.  Loop Structure

How is it implemented in Apex?

1.  for

2.  while

3.  do while

These looping statements have three major components:

initialization, (only once)

condition, (in every iteration)

increment/decrement, (in every iteration)

 

1. for

Syntax:

for(initialization ; condition ; increment/decrement)

{

/*statements*/

}

 

2. while

Syntax:

initialization

while(condition)

{

/*statements*/

increment/decrement

}

 

 

 

 

 

3. do while

Syntax:

Initialization

do

{

/*statements*/

increment/decrement

}

while(condition);