Apex Developer Guide

Apex Developer Guide
Getting Started with Apex
Writing Apex
Running Apex
Debugging, Testing, and Deploying Apex
Apex Language Reference
Apex DML Operations
ApexPages Namespace
AppLauncher Namespace
Approval Namespace
Auth Namespace
Cache Namespace
Canvas Namespace
ChatterAnswers Namespace
ConnectApi Namespace
Database Namespace
Datacloud Namespace
DataSource Namespace
Dom Namespace
EventBus Namespace
Flow Namespace
KbManagement Namespace
Messaging Namespace
Metadata Namespace
Process Namespace
QuickAction Namespace
Reports Namespace
Schema Namespace
Search Namespace
Sfc Namespace
Site Namespace
Support Namespace
System Namespace
Address Class
Answers Class
ApexPages Class
Approval Class
Blob Class
Boolean Class
BusinessHours Class
Cases Class
Comparable Interface
Continuation Class
Cookie Class
Crypto Class
Custom Settings Methods
Database Class
Date Class
Datetime Class
Decimal Class
Double Class
EncodingUtil Class
Enum Methods
EventBus Class
Exception Class and Built-In Exceptions
FlexQueue Class
FeatureManagement Class
Http Class
HttpCalloutMock Interface
HttpRequest Class
HttpResponse Class
Id Class
Ideas Class
InstallHandler Interface
Integer Class
JSON Class
JSONGenerator Class
JSONParser Class
JSONToken Enum
Limits Class
List Class
Location Class
Long Class
Long Methods
Map Class
Matcher Class
Math Class
Messaging Class
MultiStaticResourceCalloutMock Class
Network Class
PageReference Class
Pattern Class
Queueable Interface
QueueableContext Interface
QuickAction Class
RemoteObjectController
ResetPasswordResult Class
RestContext Class
RestRequest Class
RestResponse Class
SandboxPostCopy Interface
Schedulable Interface
SchedulableContext Interface
Schema Class
Search Class
SelectOption Class
Set Class
Site Class
SObject Class
StaticResourceCalloutMock Class
String Class
StubProvider Interface
System Class
Test Class
Time Class
TimeZone Class
Trigger Class
TriggerOperation Enum
Type Class
UninstallHandler Interface
URL Class
UserInfo Class
UserManagement Class
Version Class
WebServiceCallout Class
WebServiceMock Interface
XmlStreamReader Class
XmlStreamWriter Class
TerritoryMgmt Namespace
TxnSecurity Namespace
UserProvisioning Namespace
VisualEditor Namespace
wave Namespace
Appendices
Glossary
PDF

Newer Version Available

This content describes an older version of this product. View Latest

Long Class

Contains methods for the Long primitive data type.

Namespace

System

Usage

For more information on Long, see Primitive Data Types.

Long Methods

The following are methods for Long.

format()

Returns the String format for this Long using the locale of the context user.

Signature

public String format()

Return Value

Type: String

Example

1Long myLong = 4271990;
2system.assertEquals('4,271,990', myLong.format());

intValue()

Returns the Integer value for this Long.

Signature

public Integer intValue()

Return Value

Type: Integer

Example

1Long myLong = 7191991;
2Integer value = myLong.intValue();
3system.assertEquals(7191991, myLong.intValue());

valueOf(stringToLong)

Returns a Long that contains the value of the specified String. As in Java, the string is interpreted as representing a signed decimal Long.

Signature

public static Long valueOf(String stringToLong)

Parameters

stringToLong
Type: String

Return Value

Type: Long

Example

1Long L1 = long.valueOf('123456789');