Language in C perguntas e respostas de entrevista
Question: How do I write printf( ) so that the width of a field can be specified at runtime?
Answer: This is shown in following code snippet.main( ) { int w, no ; printf ( "Enter number and the width for the number field:" ) ; scanf ( "%d%d", &no, &w ) ; printf ( "%*d", w, no ) ; } Here, an '*' in the format specifier in printf( ) indicates that an int value from the argument list should be used for the field width. |
Salvar para revisao
Adicione este item aos favoritos, marque-o como dificil ou coloque-o em um conjunto de revisao.
Faca login para salvar favoritos, perguntas dificeis e conjuntos de revisao.
Isto e util? Sim Nao
Mais uteis segundo os usuarios:
- What will be the output of the following code?
void main ()
{ int i = 0 , a[3] ;
a[i] = i++;
printf ("%d",a[i]) ;
} - Why doesn't the following code give the desired result?
int x = 3000, y = 2000 ;
long int z = x * y ; - Why doesn't the following statement work?
char str[ ] = "Hello" ;
strcat ( str, '!' ) ; - How do I know how many elements an array can hold?
- How do I compare character data stored at two different memory locations?