Increment and Decrement operators - Questions

For questions 1 through 2, assume the following code:

int a;
int b;

a=1;

b=a++;

1. What value does the variable b have after ALL of the code above executes?
   1. 1
   2. 2
   3. 3
   4. unknown/undefined

2. What value does the variable a have after ALL of the code above executes?
   1. 1
   2. 2
   3. 3
   4. unknown/undefined

For questions 3 through 5, assume the following code:

int x;
int y;
int z;

x=3;
y=4;

z = ++x * y++;


3. What value does the variable z have after ALL of the code above executes?
   1. 9
   2. 12
   3. 16
   4. unknown/undefined

4. What value does the variable x have after ALL of the code above executes?
   1. 2
   2. 3
   3. 4
   4. unknown/undefined

5. What value does the variable y have after ALL of the code above executes?
   1. 4
   2. 5
   3. 6
   4. unknown/undefined

See the answers.

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