The isEmpty() method of Properties class is used to check if this Properties object is empty or not.
Syntax:
public boolean isEmpty()
Parameters: This method accepts no parameters
Returns: This method returns a boolean value stating if this Properties object is empty or not.
Below programs show the implementation of int isEmpty() method.
Program 1:
// Java code to show the implementation of// isEmpty method import java.util.*;public class GfG { // Main method public static void main(String[] args) { // Create a properties and add some values Properties properties = new Properties(); properties.put("Pen", 10); properties.put("Book", 500); properties.put("Clothes", 400); properties.put("Mobile", 5000); // Print Properties details System.out.println("Properties: " + properties.toString()); // Checking if the Properties is empty System.out.println("Is Properties empty: " + properties.isEmpty()); }} |
Output:
Properties: {Book=500, Mobile=5000, Pen=10, Clothes=400}
Is Properties empty: false
Program 2:
// Java program to demonstrate// isEmpty() method. import java.util.*; public class GFG { // Main method public static void main(String[] args) { // Create a properties and add some values Properties properties = new Properties(); // Print Properties details System.out.println("Current Properties: " + properties.toString()); // Checking if the Properties is empty System.out.println("Is Properties empty: " + properties.isEmpty()); }} |
Output:
Current Properties: {}
Is Properties empty: true
References: https://docs.oracle.com/javase/9/docs/api/java/util/Properties.html#isEmpty–
