Java CompoundName get()用法及代碼示例

javax.naming.CompoundName類的get()方法用於獲取此複合名稱對象的組件。作為參數傳遞的位置，用於從複合名稱對象獲取該位置存在的組件。

用法:

public String get(int posn)

參數：此方法接受posn，它是要檢索的組件的從0開始的索引。必須在[0，size())範圍內。

返回值：此方法返回索引posn處的組件。

異常：如果posn在指定範圍之外，則此方法引發ArrayIndexOutOfBoundsException。

以下示例程序旨在說明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); 
    } 
}

輸出：

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); 
    } 
}

輸出：

position 3:v
position 4:a

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

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注：本文由純淨天空篩選整理自AmanSingh2210大神的英文原創作品 CompoundName get() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。