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–