Java CompoundName get()用法及代码示例

javax.naming.CompoundName类的get()方法用于获取此复合名称对象的组件。作为参数传递的位置，用于从复合名称对象获取该位置存在的组件。

用法:

public String get(int posn)

参数：此方法接受posn，它是要检索的组件的从0开始的索引。必须在[0，size())范围内。

返回值：此方法返回索引posn处的组件。

异常：如果posn在指定范围之外，则此方法引发ArrayIndexOutOfBoundsException。

以下示例程序旨在说明CompoundName.get()方法：
程序1:

// Java program to demonstrate 
// CompoundName.get() 
  
import java.util.Properties; 
import javax.naming.CompoundName; 
import javax.naming.InvalidNameException; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InvalidNameException 
    { 
  
        // need properties for CompoundName 
        Properties props = new Properties(); 
        props.put("jndi.syntax.separator", ":"); 
        props.put("jndi.syntax.direction", 
                  "left_to_right"); 
  
        // create compound name object 
        CompoundName CompoundName1 
            = new CompoundName("a:b:z:y:x", props); 
  
        // apply get() 
        String pos1 = CompoundName1.get(0); 
        String pos2 = CompoundName1.get(1); 
  
        // print value 
        System.out.println(pos1); 
        System.out.println(pos2); 
    } 
}

输出：

a
b

程序2:

// Java program to demonstrate 
// CompoundName.get() method 
  
import java.util.Properties; 
import javax.naming.CompoundName; 
import javax.naming.InvalidNameException; 
  
public class GFG { 
    public static void main(String[] args) 
        throws InvalidNameException 
    { 
  
        // need properties for CompoundName 
        Properties props = new Properties(); 
        props.put("jndi.syntax.separator", "/"); 
        props.put("jndi.syntax.direction", 
                  "left_to_right"); 
  
        // create compound name object 
        CompoundName CompoundName1 
            = new CompoundName( 
                "c/e/d/v/a/b/z/y/x/f", 
                props); 
  
        // apply get() 
        String pos3 = CompoundName1.get(3); 
        String pos4 = CompoundName1.get(4); 
  
        // print value 
        System.out.println("position 3:"
                           + pos3); 
        System.out.println("position 4:"
                           + pos4); 
    } 
}

输出：

position 3:v
position 4:a

参考文献：https://docs.oracle.com/javase/10/docs/api/javax/naming/CompoundName.html#get(int)

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注：本文由纯净天空筛选整理自AmanSingh2210大神的英文原创作品 CompoundName get() 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。