1. Increment & Decrement operators (Postfix and Prefix) Ms.Nita Arora KHMS

3. Increment operator (++) can be used in PREFIX and POSTFIX form. int B=3; int A=++B; //output B=4 // A=4 int B=3; int A=B++; //output B=4 // A=3

5. Decrement operator (--) can be used in PREFIX and POSTFIX form. int B=3; int A=--B; //output B=2 // A=2 int B=3; int A=B- -; //output B=2 // A=3

6. Priority of Operators and Associativity Left Comma , 11 Right Assignment = += -= *= /= %= 10 Right Conditional ?: 9 Left Logical Op. && || 8 Left Relational Op. == != 7 Left Relational Op. < <= >= > 6 Left Arithmetic Op. + - 5 Left Arithmetic Op. * / % 4 Right ++ -- ! & * (type) + - 3 Left ()[]->sizeof 2 Left Scope :: 1 associativity Description Operator Priority

9. Examples

14. 6. What is the screen output? int a=20; a += a++ + ++a ; cout << a; 5. What is the screen output? int i, j, k, m, ans; i = 0; j = -1; k = 0; m = 1;; ans = i++ && ++j || k || m++; cout<<ans; 4. What is the screen output? int i, j, k, ans; i = 1; j = 2; k = 3; ans = ++i * j - k--; cout<<ans; 3. What is the screen output? int i, j, k, ans; i = 1; j = 2; k = 3; ans = i++ * j - --k; cout<<ans; 2. What is the screen output? int a, b; a = 6; b = ++a -1; cout<<&quot;a = &quot; << a << endl; cout<<&quot;b = &quot; << b << endl; 1. What is the screen output? int a, b; a = 6; b = a++ -1; cout<<&quot;a = &quot; << a <<endl; cout<<&quot;b = &quot; << b <<endl;

16. Do you have any QUESTIONS ?