package com.crm;

import org.springframework.beans.factory.annotation.Required;

public class Student {

   private Integer age;

   private String name;

   @Required

   public void setAge(Integer age) {

      this.age = age;

   }

   public Integer getAge() {

      return age;

   }

   @Required

   public void setName(String name) {

      this.name = name;

   }

   public String getName() {

      return name;

   }

}

package com.crm;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class MainApp {

   public static void main(String[] args) {

      ApplicationContext context =

             new ClassPathXmlApplicationContext("Beans.xml");

      Student student = (Student) context.getBean("student");

      System.out.println("Name : " + student.getName() );

      System.out.println("Age : " + student.getAge() );

   }

}

<?xml version="1.0" encoding="UTF-8"?>

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

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

    xmlns:context="http://www.springframework.org/schema/context"

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

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

    http://www.springframework.org/schema/context

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

   <context:annotation-config/>

   <!-- Definition for student bean -->

   <bean id="student" class="com.crm.Student">

      <property name="name"  value="Zara" />

      <!-- try without passing age and check the result -->

      <!-- property name="age"  value="11"-->

   </bean>

</beans>