How to set locale in java

This method returns a new String object as a string representation in lower case of our String depending on the Locale specified as method argument.

The toLowerCase method is simply converts the string object into lower case. Make a note that case mapping is based on the Unicode Standard Version of Character class specification. The case mappings is not always thus the new string generated may or may not be of the same length as the original String. The new string object is equal to String in lower case format based on the transformation rule specified by the Locale method argument.

Since a String can never be changed once instantiated, thus a new string object variable is required to hold the new string. This method is helpful especially if we are comparing data which comes from different systems. In my experience as a developer, usually the strings that comes from user inputs are on different format.

Locale and Internationalization in Java Swing

Sometimes all caps, or all are small caps and sometimes the First letter is in big letter only. To normalize this kind of situation before storing the information, I usually convert first the information into lower case. This example source code demonstrates the use of toLowerCase of String class.

The example provided just converts the String name into lower case using the English locale. We have used the Locale. English constant in determining the locale argument. Running the toLowerCase Locale locale method example source code of String class will give you the following output. Email: raigrace01 gmail. Java String toLowerCase Locale locale method example. Toggle Sliding Bar Area.

Contact Info Singapore Email: raigrace01 gmail.Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.

There are several ways to create a Locale object. Regardless of the technique used, creation can be as simple as specifying the language code. However, you can further distinguish the locale by setting the region also referred to as "country" and variant codes. If you are using the JDK 7 release or later, you can also specify the script code and Unicode locale extensions.

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The Locale. For example, to specify the French language and the country of Canada, you could invoke the Locale. Builder constructor and then chain the setter methods as follows:.

There are three constructors available in the Locale class for creating a Locale object:. The following examples create Locale objects for the French language in Canada, the English language in the U. It is not possible to set a script code on a Locale object in a release earlier than JDK 7. For example:. For your convenience the Locale class provides constants for some languages and countries. When you specify a language constant, the region portion of the Locale is undefined. The next three statements create equivalent Locale objects:.

The following sections discuss the language code and the optional script, region, and variant codes. The language code is either two or three lowercase letters that conform to the ISO standard.

The script code begins with an uppercase letter followed by three lowercase letters and conforms to the ISO standard.

The region country code consists of either two or three uppercase letters that conform to the ISO standard, or three numbers that conform to the UN M.

The optional variant code can be used to further distinguish your Locale. For example, the variant code can be used to indicate dialectical differences that are not covered by the region code. For example, Java SE uses the variant code to support the Thai language. The excerpt from ThaiDigits. All rights reserved. Hide TOC.

Setting the Locale. Trail: Internationalization Lesson: Setting the Locale. The four ways to create a Locale object are: Locale.

Java Date Time - LocalDate Example

Builder Class Locale Constructors Locale. For example, it might have been used to identify differences between computing platforms, such as Windows or UNIX. To define non-language-specific variations relevant to your environment, use the extensions mechanism, as explained in BCP 47 Extensions.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here.

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The default locale of your application is determined in three ways. First, unless you have explicitly changed the default, the Locale. That is, the JVM determines the default locale from the host environment. The host environment's locale is determined by the host operating system and the user preferences established on that system. Second, on some Java runtime implementations, the application user can override the host's default locale by providing this information on the command line by setting the user.

how to set locale in java

Third, your application can call the Locale. The setDefault Locale aLocale method lets your application set a systemwide actually VM-wide resource. After you set the default locale with this method, subsequent calls to Locale. Programatically, using Locale. But, just as reference, I want to note that, on Windows, there is one more way of changing the locale used by the JRE, as documented here : changing the system-wide language.

Under the Language for non-Unicode programs section, select the desired language from the drop down menu. The system displays a dialog box asking whether to use existing files or to install from the operating system CD. Ensure that you have the CD ready. Certainly on Linux the JRE also uses the system settings to determine which locale to use, but the instructions to set the system-wide language change from distro to distro. There is another away if you don't like to change System locale but the JVM.

Learn more. Ask Question. Asked 8 years, 3 months ago. Active 10 months ago. Viewed k times. What are the possible options to do this? I know of only one option Locale.

Sean Patrick Floyd k 58 58 gold badges silver badges bronze badges. MozenRath MozenRath 7, 11 11 gold badges 49 49 silver badges 82 82 bronze badges.Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. An internationalized program can display information differently throughout the world.

how to set locale in java

For example, the program will display different messages in Paris, Tokyo, and New York. If the localization process has been fine-tuned, the program will display different messages in New York and London to account for the differences between American and British English.

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How does an internationalized program identify the appropriate language and region of its end users? It references a Locale object. A Locale object is an identifier for a particular combination of language and region. If a class varies its behavior according to Localeit is said to be locale-sensitive. For example, the NumberFormat class is locale-sensitive; the format of the number it returns depends on the Locale.

Thus NumberFormat may return a number as Franceor Locale objects are only identifiers. The real work, such as formatting and detecting word boundaries, is performed by the methods of the locale-sensitive classes. When creating a Locale object, you usually specify a language code and a country code. A third parameter, the variant, is optional. This section shows you how to add a Unicode locale extension or a private use extension to a Locale.

Locale-sensitive classes support only certain Locale definitions. This section shows you how to determine which Locale definitions are supported. This section describes the internationalization support for language tags, language tags filtering, and language tags lookup. On the Java platform you do not specify a global Locale by setting an environment variable before running the application.

Instead you either rely on the default Locale or assign a Locale to each locale-sensitive object. This section explains how to enable plug-in of locale-dependent data and services. These SPIs Service Provider Interface provides support of more locales in addition to the currently available locales. All rights reserved. Hide TOC. Setting the Locale. Trail: Internationalization.Language and geographic environment are two important influences on our culture.

They create the system in which we interpret other people and events in our life. They also affect, even define, proper form for presenting ourselves and our thoughts to others. To communicate effectively with another person, we must consider and use that person's culture, language, and environment. Similarly, a software system should respect its users' language and geographic region to be effective.

Language and region form a locale, which represents the target setting and context for localized software.

The Java platform uses java. Locale objects to represent locales. This article describes the Locale object and its implications for programs written for the Java platform. Locales identify a specific language and geographic region.

Locale-sensitive objects use java. Locale objects to customize how they present and format data to the user. Locales affect user interface language, case mapping, collation sortingdate and time formats, and number and currency formats. Locales are critical to many culturally and linguistically sensitive data operations. A java. Locale is a lightweight object that contains only a few important members:. When writing or talking about locales, you can use a text abbreviation for a convenient representation.

This notation separates each component of a locale with an underscore character:. These three elements provide enough information to other locale-sensitive objects so that they can modify their behavior for a specific linguistic or cultural purpose. For example, a java. NumberFormat object created for a German-speaking Swiss locale will format numbers differently than it would for a German-speaking Austrian locale.

how to set locale in java

See Table 1. Because Locale objects are just identifiers, locale-sensitive classes like java. NumberFormat or java. DateFormat do all the work to provide localized number or date formats. The java. DateFormat class, for example, uses a Locale object during its instantiation to decide how to format dates correctly. Language codes are defined by ISOan international standard that assigns two- and three-letter codes to most languages of the world.

Locale uses the two-letter codes to identify the target language. Table 2 lists several of these language codes.In another tutorialwe saw how we could use the Locale. If we examine the System properties, we can see the "user. My "user.

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Since the default country and default language for the locale are System properties, they can be set at start-up via -D VM arguments, such as the following arguments that set the default language to Swedish and the default country to Sweden. It should be noted that the "user.

If you need to change the default locale during runtime, use Locale. Search Tutorials:. How do I set the default locale via System properties? Description: This Java tutorial describes how to set the default locale via system properties. General Java :: How do I set the default locale? General Java :: How do I list System properties? General Java :: How do I list System properties alphabetically?

General Java :: How do I set System properties? General Java :: What's an easy way to access System Property information? General Java :: How do I use locales and resource bundles to internationalize my application? General Java :: How do I display the currency for a locale? Author: Deron Eriksson Description: This Java tutorial describes how to set the default locale via system properties.The java.

Locale class object represents a specific geographical, political, or cultural region. An operation that requires a Locale to perform its task is called locale-sensitive and uses the Locale to form information for the user.

This method gets the current value of the default locale for this instance of the Java Virtual Machine. This method returns a name for the locale's language that is appropriate for display to the user. This method returns a name for the locale's variant code that is appropriate for display to the user. This method returns the language code for this locale, which will either be the empty string or a lowercase ISO code.

This method is the getter for the programmatic name of the entire locale, with the language, country and variant separated by underbars. Locale Class Advertisements. Previous Page. Next Page. Previous Page Print Page. Locale String language, String country This constructs a locale from a language code.

How To Set Default Locale In Java

Locale String language, String country, String variant This constructs a locale from language, country, variant. String getDisplayCountry This method returns a name for the locale's country that is appropriate for display to the user. S String getDisplayCountry Locale inLocale This method Returns a name for the locale's country that is appropriate for display to the user. String getDisplayLanguage This method returns a name for the locale's language that is appropriate for display to the user.

String getDisplayLanguage Locale inLocale This method returns a name for the locale's language that is appropriate for display to the user. String getDisplayName This method returns a name for the locale that is appropriate for display to the user.

String getDisplayName Locale inLocale This method returns a name for the locale that is appropriate for display to the user. String getDisplayVariant This method returns a name for the locale's variant code that is appropriate for display to the user.

String getDisplayVariant Locale inLocale This method returns a name for the locale's variant code that is appropriate for display to the user. String getISO3Language This method returns returns a three-letter abbreviation for this locale's language.

String getLanguage This method returns the language code for this locale, which will either be the empty string or a lowercase ISO code. String getVariant This method returns the variant code for this locale.

String toString This method is the getter for the programmatic name of the entire locale, with the language, country and variant separated by underbars.


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