Write a complete program number, which creates two thread classes AddNum and ShowNum objects of which perform the following tasks:
i) AddNum adds numbers from 1 to n and display the sum on the screen. N is an integer read from the keyboard and passed as an argument to the thread constructor which is used to set the value of the integer field of the thread class to n.
ii) ShowNum displays the full name of a person where the first and second name of the person are read from the keyboard and passed as arguments to the thread constructor, which is used to set the values of the two string fields of the thread class.