Properties: keySet() : Properties « java.util « Java by API

Properties: keySet()

  
/**
 *Output:
 The value of K2 is V2.
The value of K1 is V1.
 */

import java.util.Properties;
import java.util.Set;

public class MainClass {
  public static void main(String args[]) {
    Properties capitals = new Properties();

    capitals.put("K1", "V1");
    capitals.put("K2", "V2");

    Set states = capitals.keySet();

    for (Object name : states)
      System.out.println("The value of " + name + " is "
          + capitals.getProperty((String) name) + ".");
  }
}

Related examples in the same category

1.	new Properties()
2.	new Properties(Properties prop)
3.	Properties: getProperty(String key)
4.	Properties: getProperty(String key, String defaultValue)
5.	Properties: list(PrintStream out)
6.	Properties: load(InputStream inStream)
7.	Properties: loadFromXML(InputStream in)
8.	Properties: propertyNames()
9.	Properties: setProperty(String key, String value)
10.	Properties: store(OutputStream out, String comments)
11.	Properties: storeToXML(OutputStream os, String comment)