Jagadeesh VP reduce. reuse.. recycle...
Its our responsibility to teach others....

        We have two classes Managed_Bean_Class1 & Managed_Bean_Class2 ,
        public Class Managed_Bean_Class1 {
                private String userName;
                public void setUserName( String userName){
                     this.userName = userName;
                }
              public String getUserName(){
                    return userName;
              }
      }
     if we need the instance of Managed_Bean_Class1 in Managed_Bean_Class2
      public Class Managed_Bean_Class2 {
            private String dbURL;
            public void setUserName(String dbURL){
                   this.dbURL = dbURL;
            }
          public String getUserName(){
                  return dbURL;
          }
          public boolean checkUser() {
               /* Normal way */
               Managed_Bean_Class1 ref = (Managed_Bean_Class1)FacesContext.getCurrentInstance()
               .getApplication().createValueBinding("#{managed_Bean_Class1}")
               .getValue(FacesContext.getCurrentInstance());
                  String userName = ref.getUserName();
         ............
            // business logic
        }
        public boolean connect() {
        ........
        ........
     }
   }

 <managed-bean>
             <managed-bean-name>managed_Bean_Class1</managed-bean-name>
             <managed-bean-class>myproject.UserData</managed-bean-class>
             <managed-bean-scope>request</managed-bean-scope>
 </managed-bean>
 <managed-bean>
             <managed-bean-name>managed_Bean_Class2</managed-bean-name>
             <managed-bean-class>myproject.Control</managed-bean-class>
             <managed-bean-scope>application</managed-bean-scope>
 </managed-bean>

  public Class Managed_Bean_Class2 {
       private String dbURL;
       public void setUserName(String dbURL){
            this.dbURL = dbURL;
       }
       public String getUserName(){
            return dbURL;
       }
       private Managed_Bean_Class1 class1_in_class2 = null;
       public setClass1_in_class2(Managed_Bean_Class1 class1_in_class2){
            this.class1_in_class2 = Class1_in_class2;
       }
       public Managed_Bean_Class1 getClass1_in_class2(){
            return class1_in_class2;
       }
           public boolean checkUser() {
               /* Normal way */
               String userName = getClass1_in_class2().getUserName();
              /* This will get the value in userName property
  in Managed_Bean_Class1 */
                 ............
                   // business logic
           }
           public boolean connect() {
               ........
               ........
           }
    }


      faces-config.xml entries for Managed_Bean_Class1 & Managed_Bean_Class2:
      <managed-bean>
             <managed-bean-name>managed_Bean_Class1</managed-bean-name>
             <managed-bean-class>myproject.UserData</managed-bean-class>
             <managed-bean-scope>request</managed-bean-scope>
      </managed-bean>
      <managed-bean>
             <managed-bean-name>managed_Bean_Class2</managed-bean-name>
             <managed-bean-class>myproject.Control</managed-bean-class>
             <managed-bean-scope>application</managed-bean-scope>
             <managed-property>
                         <property-name>class1_in_class2</property-name>
                         <value>#{managed_Bean_Class1}</value>
             </managed-property>
      </managed-bean>