Java Locale.Builder setLocale(Locale)用法及代码示例

Java中的java.util.Locale.Builder类的setLocale(Locale)方法用于将此Locale.Builder重置为指定的Locale。这意味着此方法将重置Locale.Builder实例的当前状态以匹配提供的Locale并返回它。

用法:

public Locale.Builder setLocale(Locale locale)

参数：此方法接受语言环境作为参数，该参数是要设置为此Locale.Builder实例的语言环境。

返回值：此方法返回一个Locale.Builder实例，该实例是将此Locale.Builder设置为指定Locale的状态。

异常：此方法引发以下异常：

IllformedLocaleException：如果指定的语言环境具有任何格式错误的字段
NullPointerException：如果指定的语言环境为null

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

输出：

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

程序2:

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

输出：

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

参考： https://docs.oracle.com/javase/9/docs/api/java/util/Locale.Builder.html#setLocale-java.util.Locale-

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注：本文由纯净天空筛选整理自Code_r大神的英文原创作品 Locale.Builder setLocale(Locale) method in Java with Examples。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。