Collections: Wiring properties using props

Opera.java:

package com.lnn.collections;

import java.util.Map.Entry;

import java.util.Properties;

public class Opera {

      private Properties instruments;

      public void setInstruments(Properties instruments) {

            this.instruments = instruments;

      }

      public void display() {

            for (Entry<Object, Object> entry : instruments.entrySet()) {

                  System.out.println(entry.getKey() + " --> " + entry.getValue());

            }

      }

}

collections.xml:

<beans xmlns="http://www.springframework.org/schema/beans"

      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

      xsi:schemaLocation="http://www.springframework.org/schema/beans

      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

      <bean id="opera" class="com.lnn.collections.Opera">

            <property name="instruments">

                  <props>

                        <prop key="GUITAR">STRUM STRUM STRUM</prop>

                        <prop key="CYMBAL">CRASH CRASH CRASH</prop>

                        <prop key="HARMONICA">HUM HUM HUM</prop>

                  </props>

            </property>

      </bean>

</beans>

Test.java:

package com.lnn.collections;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {

      public static void main(String[] args) {

            ApplicationContext context = new ClassPathXmlApplicationContext("collections.xml");

            System.out.println("------------------Properties---------------------");

            Opera opera = context.getBean("opera", Opera.class);

            opera.display();

      }

}