《C Programming》TEST PAPER.docVIP

《C Programming》TEST PAPER Time: 8:30-10:30 am. June 20, 2003 Important note: your answers must be written on the answer sheet ? Section 1: Single Choice（1 mark for each item, total 10 marks） 1.??????? The precedence of operator _____ is the lowest one. A． B．!= C． D．= 2.??????? _____ is wrong if it is used as an integer constant. A．0xa B．010L C．10 D．1.0 3.??????? The expression !(x0||y0) is equivalent to _____. A．!(x0)!(y0) B．!x0!y0 C．!x0||!y0 D．!(x0)||!(y0) 4.??????? The value of expression ______ isn’t 0。 A．1/2 B．!’\0’ C．!EOF D．NULL 5.??????? If x is a float variable, the value of expression (x=10/4) is _____ 。 A．2.5 B．2.0 C．3 D．2 6.??????? If variables are defined and assigned correctly, the expression ______ is wrong. A．ab B．a^b C．x D．a, b 7.??????? According to the declaration: int a[10], *p=a; the expression ______ is wrong. A．a[9] B．p[5] C．*p++ D．a++ 8.??????? ______ is wrong. A．char str[10]; str=string; B．char str[ ]=string; C．char *p=string; D．char *p; p=string; 9.牋牋牋?If all variables have been defined and declared in the following program, all the variables which can be used in function fun() are ______. #include stdio.h void fun(int x) { static int y; 厖 return; } int z; void main( ) { int a,b; fun(a); 厖 } A．x, y B．x, y, z C． a,b,y,z D．a,b,x,y,z 10.??? According to the declaration: int p[5], *a[5]; the expression ______ is correct. A．p=a B．p[0]=a C．*(a+1)=p D．a[0]=2 ? Section 2: Fill in the blanks（2 mark for each item, total 30 marks） 1.??????? According to the declaration: int a[2][3][4]，the number of elements of array a is _____. 2.??????? Writing conditional expression______ to calculate the value of y. 1 x0 y= 0 x=0 -1 x0 3.??????? The value of expression 1105 is _____. 4.??????? The value of expression ~(101)4 is______. 5.??????? The value of expression sizeof(“hello”) is______. 6.??????? The output of the following statements