Lesson: 22 | While Loop

Notes
Video

Notes

Loops can execute a block of code as long as a specified condition is reached.

The while loop loops through a block of code as long as a specified condition is true:

Integer i = 0;
while (i < 5) {
  System.debug(i);
  i++;
}

Output: 0 1 2 3 4 5

The do/while loop is a variant of the while loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.

Integer i = 0;
do {
  System.debug(i);
  i++;
}
while (i < 5);

Prev You need to login to have access to the quizzes. Next

Mastered by 196 users.

Apex Beginner

A. Apex Fundamentals (23 lessons)

01 | Introduction

02 | Debug

03 | Comments

04 | Data Types

05 | Variables

06 | String Methods

07 | Integer Methods

08 | Decimal Methods

09 | Date Methods

10 | Datetime Methods

11 | Time Methods

12 | Math Class & Methods

13 | Arithmetic Operators

14 | Booleans

15 | Assignment Operators

16 | Comparison Operators

17 | Logical Operators

18 | If ... Else

19 | Ternary Operator

20 | Switch

21 | For Loop

22 | While Loop

23 | Break/Continue

B. Apex Collections (6 lessons)

C. SOQL (32 lessons)

You need to complete all the quizzes before certification.

Lesson: 22 | While Loop

Notes

Apex Beginner

Login to your account