Apex Intermediate Progress | ( Lessons)

Lesson: 08 | Objects (Instance)

An object is an instance of a class.

In Apex, You will need to create objects for non-static methods.

Here is the syntax of an object:

Class_Name Object_Name = new Class_Name ();

You can call the method with the object name:

Object_Name .Method_Name();

Example:

Apex Class

public class Calculator {    
    public Decimal surfaceArea(Decimal a, Decimal b, Decimal c){        
        Decimal sArea = 2*(a*b+b*c+a*c);        
        return sArea;        
    }
}

Anonymous Window

Calculator objA = new Calculator();
System.debug('Surface Area: '+ objA.surfaceArea(3,7,8));

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Apex Intermediate

A. Apex DML Operations (8 lessons)

B. Apex Classes (17 lessons)

C. Apex Triggers (9 lessons)

D. Apex Exceptions (11 lessons)

E. Asynchronous Apex (6 lessons)

F. SOSL (10 lessons)

G. Testing Apex (9 lessons)

H. Apex Fast Recap (142 lessons)

I. Build Apex Coding Skills (64 lessons)

J. Miscellaneous (17 lessons)

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Lesson: 08 | Objects (Instance)

Example:

Apex Class

Anonymous Window

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Apex Intermediate

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Lesson: 08 | Objects (Instance)

Example:

Apex Class

Apex Intermediate