tutorial quizz question for switch operator

4. What is the result of the following code?

Code:

---

x=0;
switch(x)
{
  case 1: printf( "One" );
  case 0: printf( "Zero" );
  case 2: printf( "Hello World" );
}

---

A. One
B. Zero
C. Hello World
D. ZeroHello World

why it is D, I thought it should be B

Because cases fall-through to the next case unless you use the break statement.

if "break;" statement is used then UR expected option B will be the result

Rahmet

Quote:

---

Originally Posted by Salem

Because cases fall-through to the next case unless you use the break statement.

---

rahmet

so you mean after printing Zero the program doesn`t check if
case (2 == x) and it will print anything after case 0

No it doesn't.

The switch condition is only checked once, and that decides where in the switch statement the program jumps to. After that, the code just executes in a linear fashion like any other code until it comes to the closing brace or a break statement.

http://www.cprogramming.com/tutorial/c/lesson5.html