package com.springexample;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class RunMyProgram {
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
		ExamVivaHolder examVivaHolder = (ExamVivaHolder) context.getBean("studentHolder");
			examVivaHolder.displayStudentDetails();
	}
}

package com.springexample;

public class Teacher {
	private String teacherName;
	private String teacherDesigination;
	
	public String getTeacherName() {
		return teacherName;
	}
	public void setTeacherName(String teacherName) {
		this.teacherName = teacherName;
	}
	public String getTeacherDesigination() {
		return teacherDesigination;
	}
	public void setTeacherDesigination(String teacherDesigination) {
		this.teacherDesigination = teacherDesigination;
	}
}

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

	<bean id="student" class="com.springexample.Student">
		<property name="studentNo" value="1001" />
		<property name="studentName" value="John Peter" />
	</bean>
	
	<bean id="smithTeacher" class="com.springexample.Teacher">
		<property name="teacherName" value="Smith" />
		<property name="teacherDesigination" value="Games" />
	</bean>
	
	<bean id="albertTeacher" class="com.springexample.Teacher">
		<property name="teacherName" value="Albert" />
		<property name="teacherDesigination" value="Cricket" />
	</bean>
	
	<bean id="studentHolder" class="com.springexample.ExamVivaHolder">
		<property name="teacher" ref="albertTeacher" />
	</bean>
</beans>

package com.springexample;

public class ExamVivaHolder {
	Student student;
	Teacher teacher;

	public Student getStudent() {
		return student;
	}

	public void setStudent(Student student) {
		this.student = student;
	}	
	
	public Teacher getTeacher() {
		return teacher;
	}

	public void setTeacher(Teacher teacher) {
		this.teacher = teacher;
	}

	public void displayStudentDetails(){
		System.out.println("Exam viva inbetween!");
		System.out.println(teacher.getTeacherName()+" ("+teacher.getTeacherDesigination()+")");
		System.out.println("Taking class to");
		System.out.println(student.getStudentName()+" ("+student.getStudentNo()+")");
		System.out.println();
	}
}

package com.springexample;

public class Student {
	private int studentNo;
	private String studentName;
	
	public int getStudentNo() {
		return studentNo;
	}
	public void setStudentNo(int studentNo) {
		this.studentNo = studentNo;
	}
	public String getStudentName() {
		return studentName;
	}
	public void setStudentName(String studentName) {
		this.studentName = studentName;
	}	
}