Asu Cse 240 Midterm Review Question Set With Accurate Answers

ASU CSE 240 MIDTERM PRACTICE
QUESTIONS AND COMPLETE SOLUTIONS

◉ Given the following:


int num1 = 5; //addressed at 1877112
int num2 = 15; //addressed at 1877300
int num3 = 20; //addressed at 1877192
double d1 = 1.05; //addressed at 1374376
double d2 = 2.25; //addressed at 1374360
double d3 = 3.14; //addressed at 1374344


After these statements:


int* ptr1 = &num3
ptr1 = ptr1 + 5;


What will be the address contained in ptr1?
Answer: 1877212


◉ Which of the following statements will allow me to give the
value of 10 to the memory int* myPtr points to?
Answer: *myPtr = 10;

,◉ int num1 = 5; //addressed at 1767612


int num2 = 10; //addressed at 1767600


int num3 = 15; //addressed at 1767588


char ch1 = 'a'; //addressed at 3734375


char ch2 = 'b'; //addressed at 3734363


char ch3 = 'c'; //addressed at 3734351


char* chPtr = &ch3;


int* iPtr = &num3;


*iPtr = num3 *(times) 8;


'*chPtr' = '*iPtr;'


What will the following statement output?

,cout << ch3;
Answer: 'x'


◉ (True or False) Multiple pointers can reference the same
objects.
Answer: True


◉ C/C++ has 2 pointer operators, which operator represents the
name of the address? (Commonly refer as l-value.)
Answer: Asterisk (*)


◉ Given this snippet of code, what is the value of x after executing
the last statement?


int x = 10, *y;


y = &x;


y = y + 1;


*y = 100;
Answer: 10

, ◉ Given this snippet of code, what is the value of x after executing
the last statement?


int x = 10, *y;


y = &x;


*y = 100;
Answer: 100


◉ Given this snippet of code, what is the value of z after executing
the last statement?


int x = 10, *y, **z;


z = &y;


y = &x;


*y = 100;
Answer: None of the above (Memory Address)


◉ A pointer variable can take the address of a memory location as
its value. Read the given program.