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Categories >> Software >> Java Related >> Java J2EE >> Struts
 
 


 

 
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Question
advantages& 5 disadvantages of MVC architecture
 Question Submitted By :: Struts
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
1.modifieng in on logic dont distrube other lojics
2.clean separation of roles
3.easy to maintain and future enhancements
4.parallel devolopment
5.gives the good productivity
dis advantages
1.For parallel development there is a needed multiple programers
2.Kmowledge on multiple techmologies are required
 
Is This Answer Correct ?    70 Yes 30 No
Vijay
 
Answer
# 2
1) Clear separation between presentation logic and business
logic.
2)Each object in mvc have distinct responsibilities.
3)All objects and classes are independent of each other.
so change in one class does't need alternation in other
classes.
4)Easy to maintain the code and future improvements.
 
Is This Answer Correct ?    39 Yes 13 No
Sudhir
 
 
 
Answer
# 3
Advantages;
1.reusable
2.expressive
3.easier support for new types of clients
4.it is often seen in web applications
5.synchronised views
Disadvantages;
1.Increased complexity
2.Inefficiency of data access in view
3.Difficulty of using MVC with modern user interface too.
4.Neede multiple programmers
5.Knowledge on multiple technologies is required.
 
Is This Answer Correct ?    22 Yes 3 No
Naziya Tabassum
 
Answer
# 4
1-multiple views using the same model
2-fficient modularity
3-easier support for new type of client
 
Is This Answer Correct ?    5 Yes 1 No
Ranjeet
 
Answer
# 5
Advantages:

1.Reusable
2.Expressive
3.clarity of design
4.Ease of growth

disadvantages

1.Need of multiple programers
2.Kmowledge on multiple technologies are required
 
Is This Answer Correct ?    13 Yes 12 No
Saurabh
 
Answer
# 6
1.In struts there is n facility of backward flow.
2.Struts is tightly coupled
 
Is This Answer Correct ?    6 Yes 13 No
Chaitu
 

 
 
 
Other Struts Interview Questions
 
  Question Asked @ Answers
 
1.Which of the following can be performed using interceptors by the developer? 1. Provide pre-processing logic before invoking the action 2. Interact with the action and set the request parameter on the action 3. Provide post-processing logic after invoking the action 4. Modify the result 1, 2, 3 2, 3, 4 1, 2, 4 1, 2, 3, 4 2.Interceptors can be used for which of the following tasks? 1. Checking security and bottleneck 2. Tracing the log 3. Validating user input 4. Uploading file 1, 2, 3 2, 3, 4 1, 2, 4 1, 2, 3, 4 3.The ValueStack is made up of which of the following objects? 1. Temporary Objects 2. Model Object 3. Action Object 4. Permanent Object 1, 2, 3 2, 3, 4 1, 2, 4 1, 2, 3, 4 4.Which of the following statements are correct? Apache Struts is a Java based framework that separates the application logic from the presentation layer. Action is based on pull-MVC framework which means that the data to be displayed is pulled from the action class which is a POJO class acting as a model in the Web application. OGNL is a powerful expression language that allows you to refer and manipulate the data present on the ValueStack. Declarative architecture enables you to integrate the different components present in the Web application either using XML files or Annotations. 5.Which of the following are the examples of helpers? 1. Action Interface 2. ActionSupport Class 3. ActionImplement Interface 1, 2 2, 3 1, 3 1, 2, 3 6.The Struts 2 filter performs which of the following tasks? 1. Installation of the Action class 2. Execution of the method specified in the configuration file 3. Reading of the control string 1, 2 2, 3 1, 3 1, 2, 3 7.Which of the following value for the debug parameter displays an OGNL console to test OGNL expressions against the value stack? xml console command All of the above. 8.Which of the following are correct statements? The execute () method of the action class defines business logic implementations. ActionSupport class adds useful utilities to the class that extends it. Set of Interceptors are grouped into a stack known as Interceptor Stack. All of the above. 9.Which of the following annotation helps to set the path of the action URL? It is placed before the action class and it applies to all actions defined in the class, even if the fully qualified URLs are not supplied. @Namespace @Result @Results @ParentPackage 10.Which of the following statements are correct related to OGNL and Annotations? OGNL is an expression and binding language that is used for getting and setting the properties of the Java objects. Annotations acts as an alternative to HTML and Java properties configuration file. Action Annotations are available when the framework scans the classpath for action classes. Lifecycle callback annotations are invoked at any time during the processing of an action. 11.Which of the following are the features of the new unified Expression Language? Deferred evaluation of expression Support expressions that can set values and invoke methods Provides a pluggable API for resolving expressions All of the above. 12.By introducing the new feature by JSF, improvements have been made in which of the following areas? Set of standard converter messages Addition of requiredMessage, converterMessage, and validatorMessage attribute for input components. Displaying the error message using the input component name with the help of label attribute added to the input components All of the above. 13.Which of the following statements are correct about the 'label' attribute? In JSF 2.1, the label attribute have been introduced with the input components. The label attribute can accept literal or value expressions. The Literal or value expressions accepted by label attribute is prefixed before the components error message. All of the above. 14.Which of the following statements are correct? EL allows developers to use simple expressions to dynamically access data from JavaBeans components. EL supports only deferred evaluation. A value expression can either yield a value or set a value and can be used for both read and write. In immediate evaluation, the expression is evaluated immediately. 15.Which of the following statements are correct? Method expression invokes as arbitrary private method of an arbitrary object by passing a specified set of parameters and returning results from the calling method. JSTL is a part of Java EE 5 platform. JSF 1.2 includes a set of messages for standard converters. The requiredMessage, converterMessage, or the validatorMessage attribute of the input components are used to provide custom error messages. Wipro 2
why we use struts in our web application , means what was drawbacks of servlet ...pls answer IBM 1
Can u call Action class methods fro struts-config.xml file? iGate 2
what is the difference between SAX Parser and DOM Parser?? Goldman-Sachs 14
What is the difference between RequestProcessor and RequestDispatcher? Ness-Technologies 11
Hi Friends, am new to struts.I read that " you can store variables in xml file(properties file) and for future enhancements we just call properties file . Now i want to implement this , where can i call properties file to enhance my application. My question is where this properties file will be called.   1
kindly can any one post for me portlet,hibernate,spring example code and configuration,and some related tutorials plz its urgent for me....thanks in advance ............   1
what is the purpose of action servlet and action?   5
How to add ms-word file in struts at the same time how to add images   1
can we change the order of parameters in execute()? Polaris 4
What is Struts Frame Work Architecture(With Diagram) ? CMC 2
drawback of Validation Framework where and how to write the connection pool object in the programe how to debug the programe and application in struts without using eclips   2
 
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