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Properties equals(value) method in Java with Examples
  • Last Updated : 23 May, 2019

The equals(value) method of Properties class is used to check for equality between two properties. It verifies whether the elements of one properties object passed as a parameter is equal to the elements of this properties or not.

Syntax:

public boolean equals(Object value)

Parameters: This method accepts a parameter value of this Properties type and refers to the map whose equality is to be checked with this map.

Returns: This method returns a boolean value stating if the equality holds for both the object Properties.

Below programs illustrate the equals(value) method:



Program 1:




// Java program to demonstrate
// equals(value) 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 1: "
                           + properties.toString());
  
        // Create another properties and add some values
        Properties properties1 = new Properties();
        properties1.put("Pen", 10);
        properties1.put("Book", 500);
        properties1.put("Clothes", 400);
        properties1.put("Mobile", 5000);
  
        // Print Properties details
        System.out.println("Properties 2: "
                           + properties1.toString());
  
        // Checking the equality
        System.out.println("Are both properties equal: "
                           + properties.equals(properties1));
    }
}
Output:
Properties 1: {Book=500, Mobile=5000, Pen=10, Clothes=400}
Properties 2: {Book=500, Mobile=5000, Pen=10, Clothes=400}
Are both properties equal: true

Program 2:




// Java program to demonstrate
// equals(value) 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(1, "100RS");
        properties.put(2, "500RS");
        properties.put(3, "1000RS");
  
        // Print Properties details
        System.out.println("Current Properties: "
                           + properties.toString());
  
        // Create another properties and add some values
        Properties properties1 = new Properties();
        properties1.put("Pen", 10);
        properties1.put("Book", 500);
        properties1.put("Clothes", 400);
        properties1.put("Mobile", 5000);
  
        // Print Properties details
        System.out.println("Properties 2: "
                           + properties1.toString());
  
        // Checking the equality
        System.out.println("Are both properties equal: "
                           + properties.equals(properties1));
    }
}
Output:
Current Properties: {3=1000RS, 2=500RS, 1=100RS}
Properties 2: {Book=500, Mobile=5000, Pen=10, Clothes=400}
Are both properties equal: false

References: https://docs.oracle.com/javase/9/docs/api/java/util/Properties.html#equals-java.lang.Object-

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