6th December 2019

tutorialspoint

11

What do you mean by exception handling in C++?

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An exception is a problem that arises during the execution of a program. A C++ exception is a response to an exceptional circumstance that arises while a program is running, such as an attempt to divide by zero. C++ exception handling is built upon three keywords: try, catch, and throw.

Also, what is the definition of exception handling in Java?

Definition: An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions. When an error occurs within a method, the method creates an object and hands it off to the runtime system.

What is the use of exception handling in Java?

An exception (or exceptional event) is a problem that arises during the execution of a program. When an Exception occurs the normal flow of the program is disrupted and the program/Application terminates abnormally, which is not recommended, therefore, these exceptions are to be handled.

What is the difference between error and exception?

An Error "indicates serious problems that a reasonable application should not try to catch." while. An Exception "indicates conditions that a reasonable application might want to catch." Error along with RuntimeException & their subclasses are unchecked exceptions. All other Exception classes are checked exceptions.

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What is a virtual function in C++?

A virtual function is a member function that you expect to be redefined in derived classes. When you refer to a derived class object using a pointer or a reference to the base class, you can call a virtual function for that object and execute the derived class's version of the function.

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What is exception handling in net?

An exception is a problem that arises during the execution of a program. An exception is a response to an exceptional circumstance that arises while a program is running, such as an attempt to divide by zero. VB.Net exception handling is built upon four keywords: Try, Catch, Finally and Throw.

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What is an exception in SQL?

An exception is an error condition during a program execution. PL/SQL supports programmers to catch such conditions using EXCEPTION block in the program and an appropriate action is taken against the error condition. There are two types of exceptions − System-defined exceptions.

4

What is a function in C++?

A function is a group of statements that together perform a task. Every C++ program has at least one function, which is main(), and all the most trivial programs can define additional functions. You can divide up your code into separate functions.

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What is the use of inline function in C++?

The inline functions are a C++ enhancement feature to increase the execution time of a program. Functions can be instructed to compiler to make them inline so that compiler can replace those function definition wherever those are being called.

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What is exception in C?

Exception Handling in C++ One of the advantages of C++ over C is Exception Handling. catch: represents a block of code that is executed when a particular exception is thrown. throw: Used to throw an exception. Also used to list the exceptions that a function throws, but doesn't handle itself.

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What is the function of a template?

Function templates. In C++ this can be achieved using template parameters. A template parameter is a special kind of parameter that can be used to pass a type as argument: just like regular function parameters can be used to pass values to a function, template parameters allow to pass also types to a function.

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What do you mean by generic programming in C++?

The simplest example for generic programming are container classes like arrays, lists or maps that contain a collection of other objects. But there's much more to generic programming. In the context of C++ (and called meta programming) it means to write programs that are evaluated at compile time.

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What is error handling in C#?

A C# exception is a response to an exceptional circumstance that arises while a program is running, such as an attempt to divide by zero. Exceptions provide a way to transfer control from one part of a program to another. C# exception handling is built upon four keywords: try, catch, finally, and throw.

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What is a pure virtual function in C++?

A pure virtual function is a virtual function whose declaration ends in =0 : Derived classes need to override/implement all inherited pure virtual functions. If they do not, they too will become abstract. An interesting 'feature' of C++ is that a class can define a pure virtual function that has an implementation.

11

What are the streams in C++?

C++ also provides stream types for reading from and writing to files stored on disk. The types ifstream and ofstream are C++ stream classes designed to be connected to input or output files. File stream objects have all the member functions and manipulators possessed by the standard streams, cin and cout.

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What is a template in C++?

C++ Templates. A template is a blueprint or formula for creating a generic class or a function. The library containers like iterators and algorithms are examples of generic programming and have been developed using template concept.

13

What is the use of CERR in C++?

extern ostream cerr; Standard output stream for errors. Object of class ostream that represents the standard error stream oriented to narrow characters (of type char ). It corresponds to the C stream stderr . The standard error stream is a destination of characters determined by the environment.

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What is the use of exception handling in Java?

Definition: An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions. When an error occurs within a method, the method creates an object and hands it off to the runtime system. This block of code is called an exception handler.

15

What is the meaning of exception in PHP?

With PHP 5 came a new object oriented way of dealing with errors. Exception handling is used to change the normal flow of the code execution if a specified error (exceptional) condition occurs. This condition is called an exception.

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What is a PHP error?

PHP Error Introduction. The error functions are used to deal with error handling and logging. The error functions allow us to define own error handling rules, and modify the way the errors can be logged. The logging functions allow us to send messages directly to other machines, emails, or system logs.

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What is a fatal error in php?

A fatal exception is thrown, and execution of the script halts. You can read more about PHP exceptions here. It's an error that caused the script to abort and exit immediately. All statements after the fatal error are never executed. Execution of the script is halted.

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What is the use of error handling?

Error handling refers to the anticipation, detection, and resolution of programming, application, and communications errors. Specialized programs, called error handlers, are available for some applications.

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What is a fatal error?

In computing, a fatal error or fatal exception error is an error that causes a program to abort and may therefore return the user to the operating system. When this happens, data that the program was processing may be lost.

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