What is the probability that a five card poker hand contains the jack of diamonds and the two of spades? Solution Jack of diamonds and the two of spades: No of ways to get 1 Jack of diamonds: = 1 No of ways to get 2 spades: 13C2 = 78 Total No of ways to contains the jack of diamonds and the two of spades = 1*78 = 78 and No of ways to five card poker hand = 52C5 = 2,598,960 Then Probability = 78/2,598,960 = 0.00003001.

1. Which of the following is a difference between lightweight and heavyweight components.
Lightweight components render themselves using paint, but heavyweight components render
themselves using paintComponent.
Lightweight components render themselves using paintComponent, but heavyweight
components render themselves using paint.
Lightweight components can’t contain other components, but heavyweight components can.
Lightweight components can’t have layout managers, but heavyweight components can.
Solution
Answer:
Lightweight components render themselves using paintComponent, but heavyweight
components render themselves using paint.
Swing components are lightweight components and AWT components are heavy weight
components.
Swing components render themselves. Swing components are called lightweight because they do
not have any dependency with the underlying windowing system