What are the different scopes in JSP?
Object scope in JSP is segregated into four parts and they are page, request, session and application.
How many scoped variables are included in JSP?
Type of Scopes in JSP: JSP provides 4 scopes to a variable. Developer can assign any one of them to a variable.
Which is the biggest scope provided by JSP?
Application scope is the broadest scope and should only be used when necessary. You can create objects bound at application level in JSPs that are not session-aware, so application scope is useful for storing information when using these types of JSPs.
What is Jstl scope?
The scope of a JSTL variable cannot be determined from its context in the same way a Java variable can. Therefore, you must specify the scope of every variable you create. If you fail to specify the scope for a variable, that variable’s scope will default to page-level scope.
What are the different scope values for the JSP Usebean tag?
The default scope is page.
- page: specifies that you can use this bean within the JSP page.
- request: specifies that you can use this bean from any JSP page that processes the same request.
- session: specifies that you can use this bean from any JSP page in the same session whether processes the same request or not.
What is default scope of variable in JSP?
PageScope is the default scope. The object is accessible only from within the JSP page where it had been created. A page-scope object is stored within the implicit pageContext object.
Which of the following is not a scope in JSP?
24. E Global is not a valid scope for java bean in Jsp.
What is Scriptlet expression and declaration in JSP?
The jsp scriptlet tag can only declare variables not methods. The jsp declaration tag can declare variables as well as methods. The declaration of scriptlet tag is placed inside the _jspService() method. The declaration of jsp declaration tag is placed outside the _jspService() method.
What is the default scope of JSTL variables?
page scope
If no value is specified for scope , page scope is the default unless otherwise specified. In other words, the default is page , i.e. the current JSP page.
What is valid scope in JSP?
request, page, session, global. response, page, session, application. request, page, context, application.
What are the different scopes in Java?
There are three types of variables in java, depending on their scope: local variables. instance variables. class variables (static variables).
Which of the following are the valid scopes in JSP Mcq?
| Q. | Which of the following are the valid scopes in JSP? |
|---|---|
| A. | request, page, session, application |
| B. | request, page, session, global |
| C. | response, page, session, application |
| D. | request, page, context, application |
What is the difference between JSP scriptlet tag and declaration tag?
The JSP declaration tag is used to declare fields and methods….Difference between JSP Scriptlet tag and Declaration tag.
| Jsp Scriptlet Tag | Jsp Declaration Tag |
|---|---|
| The declaration of scriptlet tag is placed inside the _jspService() method. | The declaration of jsp declaration tag is placed outside the _jspService() method. |
Which variables have a function scope?
Local variables have Function Scope: They can only be accessed from within the function. Since local variables are only recognized inside their functions, variables with the same name can be used in different functions. Local variables are created when a function starts, and deleted when the function is completed.
What are the different scope values for the tag?
It has many attributes like id, scope, class, type, and beanName. The scope attribute in the useBean action tag is used to represent the scope of the bean. The default scope is the page, but different scopes are available such as request, session, and application.
What is true session scope?
Which option is true about session scope? Explanation: Object data is available till session is alive.
Which of the following is not a scope of JSP?
What is scope in Java example?
Scope refers to the lifetime and accessibility of a variable. How large the scope is depends on where a variable is declared. For example, if a variable is declared at the top of a class then it will accessible to all of the class methods. If it’s declared in a method then it can only be used in that method.
What is the scope of a JSP page?
Page scope is managed by the pageContext object. As a page context object is created for every JSP page, so, every JSP page will have a specific page scope. PageScope is the default scope.
What is the default scope of JSP objects created using tag?
The default scope for JSP objects created using tag is page. JSP implicit objects out, exception, response, pageContext, config and page have ‘page’ scope.
What is the difference between page scope and request scope?
Because the variable has “Page Scope” which is accessible on only that page and not on any other page. The page scope does not require explicit removal of created and bound objects. It is necessary to use page scope for objects created only for the current page, therefore it is rarely used. Request scope is managed by the request object.
What is the scope of implicit objects in JSP?
JSP implicit objects out, exception, response, pageContext, config and page have ‘page’ scope. A JSP object created using the ‘request’ scope can be accessed from any pages that serves that request. More than one page can serve a single request. The JSP object will be bound to the request object. Implicit object request has the ‘request’ scope.