CSC133 Intro to CS Using C++ - Increment and Assignment Worksheet

Increment and Assignment Worksheet

For each of the following groups of statements, show the value of each variable that will be changed by each assignment statement. Assume that the statements are executed in sequence, so that each uses the values from the previous statements. Assume that you are given the following declarations:

   int num;
   int amount;
   float val;


  1. num = 10;
     num = num + 1;
     num = num + 1;
     num = num * 2;

  2. num = 10;
     val = 2.5;
     num++;
     val += num;

  3. num = 10;
     amount = 2 * num++;

  4. num = 10;
     amount = 2 * ++num;

  5. num = 3;
     val = 2.5;
     val *= 4 + num * 2;

  6. num = 4;
     amount = 2;
     val = 2.0;
     num--;
     num -= amount++ * 5 / (val + 2) - 1;

  7. num = 5;
     (num++)++;
     num *= 4;