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

Java中java.util.Locale.Builder类的clearExtensions()方法用于将Locale.Builder的扩展名重置为初始状态和空状态。语言，脚本，变体和区域的所有其他值通过此方法保持不变。

用法:

public Locale.Builder clearExtensions()

参数：此方法不接受任何参数。

返回类型：此方法返回一个Locale.Builder实例，其扩展名重置为其初始状态和空状态。

异常：此方法不会引发任何异常。

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(); 
  
        // Displaying Locale.Builder 
        System.out.println("LocaleBuilder:"
                           + localeBuilder); 
  
        // clearing the extensions 
        // of Locale.Builder 
        System.out.println("Clearing the"
                           + " extensions."); 
  
        localeBuilder 
            = localeBuilder.clearExtensions(); 
  
        // Displaying Locale.Builder 
        System.out.println("Updated LocaleBuilder:"
                           + localeBuilder); 
    } 
}

输出：

LocaleBuilder:java.util.Locale$Builder@232204a1
Clearing the extensions.
Updated LocaleBuilder:java.util.Locale$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); 
  
        localeBuilder 
            = localeBuilder 
                  .setExtension('u', 
                                "ca-japanese"); 
  
        // Displaying Locale.Builder 
        System.out.println("Extension set "
                           + "of LocaleBuilder:"
                           + localeBuilder); 
  
        // clearing the extensions 
        // of Locale.Builder 
        System.out.println("Clearing the"
                           + " extensions."); 
  
        localeBuilder 
            = localeBuilder.clearExtensions(); 
  
        // Displaying Locale.Builder 
        System.out.println("Updated LocaleBuilder:"
                           + localeBuilder); 
    } 
}

输出：

LocaleBuilder:java.util.Locale$Builder@232204a1
Extension set of LocaleBuilder:java.util.Locale$Builder@232204a1
Clearing the extensions.
Updated LocaleBuilder:java.util.Locale$Builder@232204a1

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

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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 clearExtensions() 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。