Question

Suppose that x and y are int variables, z is a double variable, and the input is:

28 32.6 12
Choose the values of x, y, and z after the following statement executes:
cin >> x >> y >> z;
a. x =28, y =12, z = 32.6
b. x =28, y= 32, z = 12.0
c. x =28, y= 12, z = 0.6
d. x= 28, y=32, z = 0.6

Answer 1

After the execution of the statement with the input "28 32.6 12", the values of the variables will be x = 28, y = 32, and z = 12.0.

Step-by-step explanation:

You were asked to determine the values of int variables x and y, and a double variable z, after reading the input using the statement cin >> x >> y >> z; with the given input of "28 32.6 12". According to the stated order in which variables are read, x will first take the value of 28, y will then read the next integer, which is the integer part of 32.6, so y will have the value 32. The remaining decimal part of the number is not an int and cannot be stored in y, thus, it will be ignored by the cin operation for y. Finally, z will take the value of 12.0, as the last number 12 is read as a double.

Therefore, after the statement executes:

• x = 28
• y = 32
• z = 12.0