The isEmpty() method of a javax.naming.CompoundName class is used to check this compound name object is empty or not. A compound name is said to be empty if it has zero components.
Syntax:
public boolean isEmpty()
Parameters: This method accepts nothing.
Return value: This method returns true if this compound name is empty, false otherwise.
Below programs illustrate the CompoundName.isEmpty() method:
Program 1:
// Java program to demonstrate// CompoundName.isEmpty() 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 isEmpty() boolean isEmpty = CompoundName1.isEmpty(); // print value System.out.println("This Compound " + "object is empty:" + isEmpty); }} |
Output:
This Compound object is empty:false
Program 2:
// Java program to demonstrate// CompoundName.isEmpty() 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( "", props); // apply isEmpty() boolean isEmpty = CompoundName1.isEmpty(); // print value System.out.println("This Compound " + "object is empty:" + isEmpty); }} |
Output:
This Compound object is empty:true
References: https://docs.oracle.com/javase/10/docs/api/javax/naming/CompoundName.html#isEmpty()
