Practical Slip 9 - 2019 Pattern

Data Structure:

A) Write a program to accept a postfix expression and evaluate the expression using the stack.

    Example: Input: ab+cd-*

    Values: a=4, b=2, c=5, d=3

    Answer: 12            [20 M]

B) Write a ‘C’ program to create a singly linked list, reverse it and display both the

list.

                              [10 M]

PHP:

C) Write PHP script to define an interface which has methods area(), volume(). Define constant PI. Create a class cylinder which implements this interface and calculate area and volume.                                                          [25 M]

Angular JS:

D) Create an HTML form using AngularJS that contain the Employee Registration

details and validate DOB, Joining Date, and Salary and also create a simple

arithmetic calculator using radio buttons (use ng-switch, ng-switch-when).                                                                                                                          [25 M]

    

R Programming:

E) Write an R program to change the first level of a factor with another level of a given factor.                           [25 M]