Given, char  grade = ‘N’; int num = 7; switch (grade) {    …

Given, char  grade = ‘N’; int num = 7; switch (grade) {     case ‘A’ : num++;                   break;     case ‘B’:       case ‘C’: num+=2;                break;     case ‘D’: num–;                break;     default: num +=3}   The value of num after executing the above code, is: