11.4 Simple Arithmetic Program For this lab, you will write a Java program to prompt the user to enter two integers. Your program will display a series of arithmetic
operations using those two integers.
Sample Output: This is a sample
transcript of what your program should do. Items in bold are user input and should not be put on the
screen by your program. Make sure your output looks EXACTLY like the output below, including spacing. Items in bold are elements input by
the user, not hard-coded into the program.
Enter the first number: 12
Enter the second number: 3
12 + 3 = 15
12 - 3 = 9
12 * 3 = 36
12 / 3 = 4
12% 3 = 0
The average of your two numbers is: 7
A second run of your program with different inputs might look like this:
Enter the first number: -4
Enter the second number: 3
-4 + 3 = -1
-4 3 = -7
-4 * 3 = -12
-4 / 3 = -1
-4 % 3 = -1
The average of your two numbers is: 0
raico 2 of Closedlani That code takes in a single number and

Consider a slotted aloha system, where the time slot equals the fixed duration of each packet. assume that there are 4 stations a,b,c,d sharing the medium. (a) stations a,b,c,d receive one packet each from higher layers at times 1.3, 1.5, 2.6,5.7 respectively. show which transmissions take place when, according to the slottedaloha protocol; describe all transmissions until all four packets have been successful.when needed, each station has access to the following sequence of random number, provided by a random number generator and drawn uniformly between 0 and 1: (1) station a draws numbers: 0.31, 0.27, 0.78, 0.9, 0.9, 0.11, 0. (2) station b draws numbers: 0.45, 0.28, 0.11, 0.83, 0.37, 0.22, 0. (3)station c draws numbers: 0.1, 0.2, 0.3, 0.4, 0. (4) station d draws numbers: 0.36, 0.77, 0.9, 0.1, 0.1, 0.1, 0.1, 0. (b) in slotted aloha, a station transmits in each time slot with a given probability. what probabilities would you assign to each of the four stations so as to: (i) maximize the efficiency of the protocol? (ii) maximize fairness among the four stations? (c) will the efficiency increase or decrease if we modify slotted aloha as follows: (i) get rid of slots and allow stations to transmit immediately? (ii) implement carrier sensing? (iii) implement collision detection? (iv) implement collision avoidance?