Int num1, num2, newNum: double x, y: Which of die following assignments are vali

Question

Int num1, num2, newNum: double x, y: Which of die following assignments are valid? If an assignment is not valid, state the reason. a. num1 - 35: b. newNum = num1 - num2: c. num1 = 5: num2 = 2 + num1: num1 = num2/3: d. num1 * num2 = newNum: e. x = 12 * num1 - 15 3: f. num1 * 2 = newNum + num2: g. x/y = x * y: h. num2 = num1 % 2.0: i. newNum = satatic_caat (x) % 5: j. x = x + y - 5: k. newNum = num1 + static_cast (4.6/2): Write C++ statement(s) that accomplish the following: a. Declare int variables x and y. Initialize x to 25 and y to 18. b. Declare and initialize an int variable temp to 10 and a char variable ch to 'A'. c. Update the value of an int variable x by adding 5 to it. d. Declare and initialize a double variable payRate to 12.50. e. Copy the value of an int variable firstNum into an int variable tempNum. f. Swap the contents of the int variables x and y. (Declare additional variables, if necessary.) g. Suppose x and y are double variables. Output the contents of x, y, and the expression x + 12/y - 18. h. Declare a char variable grade and set the value of grado to 'A'. i. Declare int variables to store four integers. j. Copy the value of a double variable z to the nearest integer into an int variable x.

Explanation / Answer

Please find below the required solution:

Problem 03

Given :

int num1,num2,newNum;

double x,y;

a. num1 = 35 VALID

b. newNum = num1 - num2 VALID

c. num1 = 5; num2 = 2 + num1; num1 = num2/3 VALID

d. num1 * num2 = newNum INVALID

Assignment should be always left to right newNum = num1 * num2 is valid

e. x = 12 * num1 -15.3 VALID

f. num1 * 2 = newNum + num2 INVALID

no operations can be performed on left side only assignments can be done

g. x/y = x*y; INVALID

no operations alowed on left side

h. num2 = num1%2.0; INVALID

num1 and num2 is type of int and 2.0 is type of double

invalid operations

i. newNum = static_cast<int> (x) %5; VALID

j. x = x + y - 5 VALID

k. newNum = num1 + static_cast<int> (4.6/2); VALID

Problem 04

a.

int x,y;

x = 25;

y = 18;

b.

int temp = 10;

char ch = 'A';

c.

x = x + 5;

d.

double payRate = 12.50;

e.

int firstNum;

int tempNum = firstNum;

f.

int temp = x;

x=y

y=temp

g.

x+12/y-18 //output will be 2.5

h.

char grade = 'A'

i.

int a,b,c,d;

j.

double z =2.0;

x = int(z)

Please do let me know if u have any concern...

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