Properties Enumeration keys() method Example Program

Returns an enumeration of the keys in this hashtable.

Program

package com.candidjava;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Properties;

/* 
 * @author : Mohan 
 * @description : The keys() method is used to get an enumeration of the keys in this hashtable.
 */
public class PropertiesKeys {
	public static void main(String[] args) {
		Properties properties = new Properties();
		Hashtable ht = new Hashtable(properties);
		ht.put("1", "hari");
		ht.put("2", "anand");
		ht.put("3", "vinoth");
		ht.put("4", "mohan");
		ht.put("5", "karthick");
		System.out.println(ht);
		Enumeration en = ht.keys();
		while (en.hasMoreElements()) {
			System.out.println(en.nextElement());
		}
	}
}

Output

Explanation

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