ResourceBundle keySet() in Java

keySet(): This method is available in java.util.ResourceBundle class of Java.

Syntax:

Set<String> java.util.ResourceBundle.keySet()

This method returns a Set of all keys contained in this ResourceBundle and its parent bundles.

Parameters: NA

Returns: a Set of all keys contained in this ResourceBundle and its parent bundles.

Exceptions: NA

Approach

Java

import java.util.Locale;
import java.util.ResourceBundle;

public class ResourceBundlekeySet {
    public static void main(String[] args) {

        ResourceBundle bundle = 
        ResourceBundle.getBundle("Hello", Locale.US);

        System.out.println(bundle.keySet());
    }
}

Output:

[Hello]