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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