CompoundName remove() method in Java with Examples

The remove() method of a javax.naming.CompoundName class is used to remove a component situated at position posn from this compound name. The position posn is passed as a parameter to this method. This method removes the component of this compound name object at position ‘posn’ and components present at a position greater than ‘posn’ are shifted down by one. The size of the object is decreased by 1.

Syntax:

public Object remove(int posn)
       throws InvalidNameException

Parameters: This method accepts posn which is the index of the component to delete. Must be in the range [0, size()).

Return value: This method returns component removed (a String).

Exception: This method throws ArrayIndexOutOfBoundsException If posn is outside the specified range (includes the case where compound name is empty) and InvalidNameException If deleting the component would violate the compound name’s syntax.



Below programs illustrate the CompoundName.remove() method:
Program 1:

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// Java program to demonstrate
// CompoundName.remove()
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(
                "0@1@2@3@4@5@6@7",
                props);
  
        // apply remove()
        String removedComponent
            = (String)
                  CompoundName1.remove(5);
  
        // print value
        System.out.println(
            "Removed Component: "
            + removedComponent);
        System.out.println(
            "CompoundName After removal:"
            + CompoundName1);
    }
}

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Output:

Removed Component: 5
CompoundName After removal:0@1@2@3@4@6@7

Program 2:

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// Java program to demonstrate
// CompoundName.remove() 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 remove()
        String removedComponent1
            = (String)
                  CompoundName1.remove(1);
  
        // print value
        System.out.println(
            "Removed Component: "
            + removedComponent1);
        System.out.println(
            "CompoundName After removal:"
            + CompoundName1);
  
        // again remove component
        String removedComponent2
            = (String)
                  CompoundName1.remove(2);
  
        // print results
        System.out.println("Removed Component: "
                           + removedComponent2);
        System.out.println("CompoundName After removal:"
                           + CompoundName1);
    }
}

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Output:

Removed Component: e
CompoundName After removal:c/d/v/a/b/z/y/x/f
Removed Component: v
CompoundName After removal:c/d/a/b/z/y/x/f

References: https://docs.oracle.com/javase/10/docs/api/javax/naming/CompoundName.html#remove(int)

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