C++ perguntas e respostas de entrevista
Test your skills through the online practice test: C++ Quiz Online Practice Test
Diferencas relacionadas
Pergunta 66. What are the differences between a C++ struct and C++ class?
The default member and base-class access specifier are different.
Isto e util?
Adicionar comentario
Ver comentarios
Pergunta 67. How many ways are there to initialize an int with a constant?
Two.
There are two formats for initializers in C++ as shown in the example that follows. The first format uses the traditional C notation. The second format uses constructor notation.
int foo = 123;
int bar (123);
Isto e util?
Adicionar comentario
Ver comentarios
Pergunta 68. How does throwing and catching exceptions differ from using setjmp and longjmp?
The throw operation calls the destructors for automatic objects instantiated since entry to the try block.
Isto e util?
Adicionar comentario
Ver comentarios
Pergunta 69. What is a default constructor?
Default constructor WITH arguments class B { public: B (int m = 0) : n (m) {} int n; }; int main(int argc, char *argv[]) { B b; return 0; }
Isto e util?
Adicionar comentario
Ver comentarios
Pergunta 70. What is a conversion constructor?
A constructor that accepts one argument of a different type.
Isto e util?
Adicionar comentario
Ver comentarios
Mais uteis segundo os usuarios:
- What is C++?
- What is function overloading and operator overloading?
- What is the difference between declaration and definition?
- How do you find out if a linked-list has an end? (i.e. the list is not a cycle)
- What is the difference between realloc() and free()?