Bean Scopes:- Bean have total 5 scopes as follows:-

singleton:- It can create the single instance per Spring IoC container (default). This is default natur that single instance is stored in a cache and that instance can be stored in entire application, every time when you create the instance it will give the instance of that object from cache and new instance is created.
Prototype:- Using this scope, a single bean definition to have any number of object instances. It is every time create a new instance of the bean. If the scope is prototype the new instance is created for each request.
Session:- In this scope a bean definition to an HTTP session. It is valid in the context of a web-based spring application.
Request:- In this scope a bean definition to an HTTP request. It is valid in the context of a web-based spring application. This indicate the scope is valid only for current request
Global-session:- In this scope a bean definition to a global HTTP session. It is valid in the context of a web-based springapplication.

Example:
Teacher.java

package com.chandan;
        public class Teacher {
        private String name;
        private int id;
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public int getId() {
            return id;
        }
        public void setId(int id) {
            this.id = id;
        }

    }

Address.java

  package com.chandan;

    public class Address {

        private String city;

        public String getCity() {
            return city;
        }

        public void setCity(String city) {
            this.city = city;
        }


    }

App.java

package com.app;

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


import com.chandan.Teacher;

public class App {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        ApplicationContext ctx=new ClassPathXmlApplicationContext(new String[]{"app-context.xml"});

        Teacher teach=(Teacher)ctx.getBean("teach");

        //Department dep=emp.getDepartment();
        teach.setId(101);
        teach.setName("Chandan");
        System.out.println("Id:="+teach.getId());
        System.out.println("Name:="+teach.getName());

        Teacher teach1=(Teacher)ctx.getBean("teach");

        System.out.println("Id:="+teach1.getId());
        System.out.println("Name:="+teach1.getName());


    }

}

app-context.xml

<?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/>

    <bean id="teach" class="com.chandan.Teacher" scope="singleton">

    </bean>

    <!--This is default nature -->
</beans>

output

Id:=101
Name:=Chandan
Id:=101
Name:=Chandan

Prototype

app-context.xml

<?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/>

    <bean id="teach" class="com.chandan.Teacher" scope="prototype">

    </bean>


</beans>

output

    Id:=101
Name:=Chandan
Id:=0
Name:=null

Session

app-context.xml

<?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/>

    <bean id="teach" class="com.chandan.Teacher" scope="session">

    </bean>


</beans>

Request

app-context.xml

<?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/>

    <bean id="teach" class="com.chandan.Teacher" scope="request">

    </bean>


</beans>