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Home/Definition/Page 11

WhatisWhatis Latest Questions

Singasani Akshay
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Singasani Akshay
Asked: December 8, 2021In: Technology, Website Development

What is View Data?

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How will you define view data? Which is very much similar to view bags. What is the view data technique? What could be used to handle data? Where is View Data declared as a component with the type View Data ...

DefinitionView Data DefinitionView Data DictionaryView Data MeaningWhat is View Data
  1. Best Answer
    Singasani Akshay
    Added an answer on December 8, 2021 at 7:37 am

    View Data Definition: We can transfer database schema from a controller to a view in numerous ways in an ASP.NET MVC application, including View Bag, View Data, Temp Data, Session, and Application, as well as highly typed views. You may also use the Session and Application State variables to handleRead more

    View Data Definition:

    We can transfer database schema from a controller to a view in numerous ways in an ASP.NET MVC application, including View Bag, View Data, Temp Data, Session, and Application, as well as highly typed views.

    You may also use the Session and Application State variables to handle data during a user session or across the project, just like we do in our standard WebForms.

    View Data is a technique in the ASP.NET MVC Architecture for passing data from a management function definition to a view.

    View Data is declared as a component with the type View Data Dictionary in the Controller Base object.

    If you correct it and choose to go to description, you’ll see that View Data is described as a property in the Controller Base class with the type View Data Dictionary.

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Singasani Akshay
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Singasani Akshay
Asked: December 8, 2021In: Technology, Website Development

What is View State?

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What do you mean by view state? How it is enabled? What are some of the characteristics, Unicode implementations, disadvantages, role of the Enable View State Mac property? Does the view state concern security?

Definitiondisadvantages of view stateView StateView State DefinitionWhat is View State
  1. Best Answer
    Singasani Akshay
    Added an answer on December 8, 2021 at 7:32 am

    View State Definition: View state is stored in a structure and is immediately accessible when the page loads. The values stored in the view state are not transferable among pages. The view state is enabled by default, and independent of whether that is utilized during a component, it serializes theRead more

    View State Definition:

    View state is stored in a structure and is immediately accessible when the page loads. The values stored in the view state are not transferable among pages.

    The view state is enabled by default, and independent of whether that is utilized during a component, it serializes the data in every component on the page.

    The Enable View State attribute must be set to false to deactivate the view state for a single control.

    The Enable View State Mac property is used to recognize any effort or approach to corrupt the view state.

    View state’s general characteristics include storing the values of regulated characteristics and pages discovered in the responsible page without the need of a session, preserving the value of the direct authority after a post-back procedure, and creating a custom view state supplier for storing view state information from the database.

    View state is simple to set up and requires no system resources. It also comes with better security measures, compacted or encrypted, and helps with Unicode implementations.

    The disadvantages of view state, on the other hand, are numerous. The performance is not optimal for big amounts of data, as huge values may cause the view state to be slow. Only the variables for the very same page can be saved in the view state. It also poses a security concern and necessitates additional coding to ensure data protection.

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  • 1 Answer
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Singasani Akshay
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Singasani Akshay
Asked: December 8, 2021In: Technology, Website Development

What is the definition of Exception Handling?

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How can you understand the definition of exception handling? What does exception handling do? Is exception handling an unanticipated event? How many exceptions in Java are there?

Definitiondefinition of Exception Handlingexception handlerException HandlingException Handling MeaningJava
  1. Best Answer
    Singasani Akshay
    Added an answer on December 8, 2021 at 7:17 am

    Definition of Exception Handling: An exception handler is a piece of code that specifies what a program should do when an unexpected event interrupts the normal flow of its instructions. In the context of computers, an exception is an unanticipated event that occurs during the execution of a programRead more

    Definition of Exception Handling:

    An exception handler is a piece of code that specifies what a program should do when an unexpected event interrupts the normal flow of its instructions. In the context of computers, an exception is an unanticipated event that occurs during the execution of a program and disturbs the flow of its commands.

    There are two sorts of exceptions in Java:

    • Checked exceptions are ones that are examined when the code is developed; for the most part, the program is expected to rebound from them, or exception handlers are inserted into programs to specify what the program should do when certain circumstances are met.
    • Unchecked exceptions are unanticipated events that occur during the execution of a program. These can be managed in certain circumstances, but not in most. One sort of uncontrolled exception is an error. 

    Programs connect with the operating system and other software systems through multiple levels. When a checked exception occurs, the procedure that caused it creates this exception object that contains information such as the type of exception and the state of the program at the time of the occurrence.

    Throwing an exception refers to the creation and subsequent passing of this item. The method sends the object to the runtime system, which examines the exception handler code levels that satisfy the exception object’s specifications. The exception handler is said to catch an exception in this scenario.

    The operating system creates a fatal exception message if an adequate exception handler cannot be identified, which implies the program must close and maybe the computer as well.

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Singasani Akshay
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Singasani Akshay
Asked: December 8, 2021In: Technology, Website Development

What is the definition of method overriding?

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How will you define method overriding? Can someone mention some of the rules of the overriding method? What methods cannot be overridden? What are Overriding and synchronized/strictfp methods? What is one of the most powerful techniques for code to reuse?

Definitiondefinition of method overridingmethod overridingmethod overriding definitionmethod overriding meaning
  1. Best Answer
    Singasani Akshay
    Added an answer on December 8, 2021 at 7:10 am

    Method Overriding Definition: The state of overriding lets a subclass or child class specify a specific implementation function that is already sent by one of its super classes or parent classes in any object-oriented programming language. When a subclass's method has a similar name, value, area, orRead more

    Method Overriding Definition:

    The state of overriding lets a subclass or child class specify a specific implementation function that is already sent by one of its super classes or parent classes in any object-oriented programming language. When a subclass’s method has a similar name, value, area, or sign, and return type(or sub-type) as a method in its superclass, the subclass’s method is said to override the super-method class’s.

    One way that Java gets Runtime Polymorphism is by method overriding. However, the child class’s version is used when a method is applied using an object from a subclass. In other words, the version of an overridden method that gets performed is determined by the type of the object being referenced to, not the type of the reference variable.

    Overriding method rules are as given below:

    • Overriding: An overriding method’s access modifier can grant more, but not less, access than the overridden method. A protected instance method in the superclass, for example, can be made public in the subclass but not private. This will cause a compile-time error.
    • Final methods cannot be overridden: We declare a method as final if we do not want it to be overridden.
    • Private methods: These methods cannot be overridden since they are bonded at build time. We can’t even override secret methods in a subclass as a result.
    • The return type (or subtype) of the overriding method must match: Since Java 5.0, The return type of a child class’s overriding method can be many, but it must be a subtype of the parent’s return type. Covariant return type describes this phenomenon.
    • Invoking an overridden method from a subclass: The super keyword can be used to apply the parent class method in an overriding practice.

    To avoid a compile-time error, derived concrete classes must override abstract methods in an interface or abstract class.

    Overriding and synchronized/strictfp methods: 

    The availability of a synchronized/strictfp modifier with a technique has no influence on the overriding rules, which means a synchronized/strictfp technique can override a non-synchronized/strictfp method and vice versa.

    Overridden methods enable Java to provide polymorphism at runtime, as previously indicated. Polymorphism is important in object-oriented programming because it allows a generic class to declare methods that will be shared by all of its descendants while allowing subclasses to define the specific implementation of any or all of those methods. Java states the “one interface, various methods” element of polymorphism in various ways.

    Methodology Dynamic Object-oriented design’s dispatch mechanism is one of the most powerful code reuse and robustness techniques. The method to use existing code libraries to call methods on new class instances without recompiling while keeping a clean abstract interface is a tremendously valuable feature.

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Singasani Akshay
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Singasani Akshay
Asked: December 8, 2021In: Technology, Website Development

What is the Destructor?

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How can you explain destruction? Could you identify the synonyms of destruction? What can be several rules for destruction? What is the usage of destructors? Can anyone be aware of what occurs when destructors are invoked? What is the destruction ...

DefinitionDestruction orderDestructorDestructor DefinitionDestructor Meaning
  1. Best Answer
    Singasani Akshay
    Added an answer on December 8, 2021 at 7:01 am

    Destructor Definition: A destructor is called when an object exits scope or is explicitly destroyed by a delete call. A destructor has the same name as the class and is prefixed by a tilde.  The destructor for the String class, for example, is declared as String. If you don't declare a destructor, tRead more

    Destructor Definition:

    A destructor is called when an object exits scope or is explicitly destroyed by a delete call. A destructor has the same name as the class and is prefixed by a tilde. 

    The destructor for the String class, for example, is declared as String.

    If you don’t declare a destructor, the compiler will create one for you; for most classes, this is enough. When the class stores handle system resources that must be relinquished or pointers that own the memory they point to, you just need to create a custom destructor.

    Destructors are functions with the same name as the class but with a tilde before them.

    The declaration of destructors is governed by several rules:

    • Accept no arguments.
    • Please don’t return a value (or void).
    • It is not possible to declare it as const, volatile, or static. They can, however, be used to destroy things that have been defined as const, volatile, or static.

    It is possible to declare it as virtual. You can destroy objects without knowing their type by utilizing virtual destructors; the virtual function mechanism calls the correct destructor for the object. For abstract classes, destructors can also be defined as pure virtual functions.

    Destructors are a type of destructor that is used to destroy anything.

    When one of the following events occurs, destructors are invoked:

    • A block-scoped local (automatic) object falls out of scope.
    • The delete operator is used to explicitly deallocate an object allocated with the new operator.
    • A transient object’s work life span expires.
    • When a program is finished, global or static objects are created.
    • The destructor is invoked explicitly by using the fully qualified name of the destructor function.
    • Destructors have full access to class member functions and data.
    • The employment of destructors is subject to two limitations:
    • You are unable to obtain its location.
    • Derived classes don’t inherit their base class’s destructor.

    Destruction order:

    When an item is removed from the scope or deleted, the following series of actions occur:

    • The class’s destructor is called, and the destructor function’s body is executed.
    • Nostratic member object destructors are called in the order they appear in the class declaration. The order in which these members are built or destroyed is unaffected by the optional member initialization list used in their construction.
    • Non-virtual base class destructors are called in the reverse order of declaration.
    • Virtual base class destructors are called in the order in which they were declared.
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