场所。Java 中的 Builder build()方法，示例

原文:https://www . geesforgeks . org/locale-builder-build-method-in-Java-with-examples/

建()法 爪哇。场所。Java 中的 Builder 类 用于从指定给这个 Locale 的值中构建一个 Locale。生成器实例。此方法在构建后返回一个 Locale 实例。

语法:

public Locale build()

参数:此方法不接受任何参数。

返回类型:该方法返回一个 区域设置 实例，该实例的值设置为 Locale.Builder。

异常:这个方法不抛出任何异常。

程序 1:

// Java program to demonstrate
// the above method

import java.util.*;
import java.util.Locale.*;

public class LocaleBuilderDemo {
    public static void main(String[] args)
    {

        // Creating a new Locale.Builder
        Locale.Builder localeBuilder
            = new Builder();

        // setting the locale of Locale.Builder
        Locale locale = Locale.FRANCE;
        System.out.println("Setting the Locale: "
                           + locale);
        localeBuilder.setLocale(locale);

        // Displaying Locale.Builder
        System.out.println("LocaleBuilder: "
                           + localeBuilder);

        // Building the Locale from Locale.Builder
        System.out.println("Building the Locale.");

        Locale builtLocale = localeBuilder.build();

        // Displaying Locale.Builder
        System.out.println("Built Locale: "
                           + builtLocale);
    }
}

输出:

Setting the Locale: fr_FR
LocaleBuilder: java.util.Locale$Builder@232204a1
Building the Locale.
Built Locale: fr_FR

程序二:

// Java program to demonstrate
// the above method

import java.util.*;
import java.util.Locale.*;

public class LocaleBuilderDemo {
    public static void main(String[] args)
    {

        // Creating a new Locale.Builder
        Locale.Builder localeBuilder
            = new Builder();

        // setting the locale of Locale.Builder
        Locale locale = Locale.ENGLISH;
        System.out.println("Setting the Locale: "
                           + locale);
        localeBuilder.setLocale(locale);

        // Displaying Locale.Builder
        System.out.println("LocaleBuilder: "
                           + localeBuilder);

        // Building the Locale from Locale.Builder
        System.out.println("Building the Locale.");

        Locale builtLocale = localeBuilder.build();

        // Displaying Locale.Builder
        System.out.println("Built Locale: "
                           + builtLocale);
    }
}

输出:

Setting the Locale: en
LocaleBuilder: java.util.Locale$Builder@232204a1
Building the Locale.
Built Locale: en

参考:https://docs.oracle.com/javase/9/docs/api/java/util/Locale.builder . html # build–

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