UserInfo Methods

The following are the system static methods for UserInfo.

Name	Arguments	Return Type	Description
`getDefaultCurrency`		String	Returns the context user's default currency code for multiple currency organizations or the organization's currency code for single currency organizations. Note For Apex saved using Salesforce.com API version 22.0 or earlier, `getDefaultCurrency` returns `null` for single currency organizations.
`getFirstName`		String	Returns the context user's first name
`getLanguage`		String	Returns the context user's language
`getLastName`		String	Returns the context user's last name
`getLocale`		String	Returns the context user's locale. For example: String result = UserInfo.getLocale(); System.assertEquals('en_US', result);
`getName`		String	Returns the context user's full name. The format of the name depends on the language preferences specified for the organization. The format is one of the following: FirstName LastName LastName, FirstName
`getOrganizationId`		String	Returns the context organization's ID
`getOrganizationName`		String	Returns the context organization's company name
`getProfileId`		String	Returns the context user's profile ID
`getSessionId`		String	Returns the session ID for the current session. For Apex code that is executed asynchronously, such as `@future` methods, Batch Apex jobs, or scheduled Apex jobs, `getSessionId` returns `null`. As a best practice, ensure that your code handles both cases – when a session ID is or is not available.
`getTimeZone`		System.TimeZone	Returns the current user’s local time zone. Example: TimeZone tz = UserInfo.getTimeZone(); System.debug( 'Display name: ' + tz.getDisplayName()); System.debug( 'ID: ' + tz.getID());
`getUiTheme`		String	Returns the default organization theme. Use `getUiThemeDisplayed` to determine the theme actually displayed to the current user. Valid values are: `Theme1` `Theme2` `PortalDefault` `Webstore`
`getUiThemeDisplayed`		String	Returns the theme being displayed for the current user. Valid values are: `Theme1` `Theme2` `PortalDefault` `Webstore`
`getUserEmail`		String	Returns the current user’s email address. Example: String emailAddress = UserInfo.getUserEmail(); System.debug( 'Email address: ' + emailAddress);
`getUserId`		String	Returns the context user's ID
`getUserName`		String	Returns the context user's login name
`getUserRoleId`		String	Returns the context user's role ID
`getUserType`		String	Returns the context user's type
`isCurrentUserLicensed`	String `namespace`	Boolean	Returns `true` if the context user has a license to the managed package denoted by `namespace`. Otherwise, returns `false`. A `TypeException` is thrown if `namespace` is an invalid parameter.
`isMultiCurrencyOrganization`		Boolean	Specifies whether the organization uses multiple currencies