as part of your answer. You do not need to dry run or explain every detail of this code. Focus on using it to illustrate your points about final variables. double PI = 3.14; for(int i=1; i <= 5; i++) { total = total * 5 * PI;
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Explain in your own words three reasons why final variables are a good idea.
Illustrate your answer using the following fragment of code, suggesting appropriate
final variable declarations as part of your answer.
You do not need to dry run or explain every detail of this code. Focus on using it to
illustrate your points about final variables.
double PI = 3.14;
for(int i=1; i <= 5; i++)
{
total = total * 5 * PI;
}
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- Problem specification: There is a grid of NXN squares. We can easily determines how many different rectangles (squares are excluded) there are in the grid. For example, in a 3X3 grid, you can find 22 different rectangles, marked as the green rectangles. You can see that we did not count the red ones as they are squares. In this assignment, you will write a Java program that takes the value of N as input and determines the total area of all the rectangles in the grid. Assume that the smallest squares in the grid have length 1. So a 3X2 rectangle will have an area of 6. For example, the total area of all the rectangles in the 3X3 grid is 66.…Consider the function void change(int *p) { *p = 20; }Show how to call the change function so that it sets the integer variable int i;to 20.Can not use "and" or "or" in java Language Write the function parrotTrouble.** We have a loud talking parrot. The "hour" parameter* is the current hour time in the range 0..23. We are* in trouble if the parrot is talking and the hour* is before 7 or after 20. Return true if we are* in trouble.** Some Examples:* parrotTrouble(true, 6) returns true* parrotTrouble(true, 7) returns false* parrotTrouble(false, 6) returns false** @param isTalking true if the parrot is talking.* @param hour the time of day from 0..23.* @return true if you're in trouble with your neighbors.
- What is the functionality of the following piece of code?in c++ i need to implement the first public function and the driver code Implement a BigNumber.cpp to go with the following BigNumber.h. Meaning of operations is the usual meaning as for ints. Upload your BigNumber.cpp along with t BigNumber.h and a driver that tests each function at least once. For the multiplication, division and remainder operators you may use repeated addition and subtraction. You'll get up to 10 points extra credit if you implement those operations more efficiently. As a testcase for multiplication you should try 449! (That's a number with just under 1000 digits.) For operator>> and the string constructor, just skip over characters that aren't legal (e.g. a nondigit within the number). The only nondigit that's allowed is a single minus sign in front to indicate that the number is negative. You may modify BigNumber.h by adding prototypes for helper functions, if needed. But don't change prototypes for the functions that are already there #ifndef…[Fish Tank] You play with a clown fish that has an initial size so. The fish can eat other fish in a tank organized in m columns and n rows. The fish at column i and row j has a positive size si,j. When your fish eats another fish, it grows by that amount. For example, if your clown fish has a size of 10 and eats a fish of size 5, it becomes of size 15. You cannot eat a fish that is bigger than your size. The game starts by eating any fish in the first (left-most) column that is not bigger than yours. After that, you advance one column at a time by moving right. You have only three allowed moves. You either stay at the same row, move one row higher or one row lower. You will always move to the right. Thus, you will make exactly m moves to advance from left to right. Your goal is to exit the fish tank from the right with the biggest possible size. The figure below shows an example with the best answer highlighted. In this case, the final fish size is 71 (10+8+7+24+22). You are required…