writeToFile public statie void writeToFile (double[]0 data, java.io.File outputFile) throws java.io.FileNotFoundException Writes the ragged array of doubles into the file. Each row is on a separate line within the file and each double is separated by a space. Parameters: data - two dimensional ragged array of doubles outputFile - the file to write to Throws: java.io.FileNotFoundException - if outputFile is not valid

THIS IS MEANT TO BE IN JAVA. What we've learned so far is variables, loops, and we just started learning some array today. The assignment is to get an integer from input, and output that integer squared, ending with newline.  But i've been given some instructions that are kind of confusing to me. Please explain why and please show what the end result is. Here are some extra things i've been told to do with the small amount of code i've already written... Type 2 in the input box, then run the program so I can note that the answer is 4 Type 3 in the input box instead, run, and note the output is 6. Change the output statement to output a newline: System.out.println(userNumSquared);. Type 2 in the input box Change the program to use * rather than +, and try running with input 2 (output is 4) and 3 (output is now 9, not 6 as before). This is what I have so far...   import java.util.Scanner; public class NumSquared {public static void main(String[] args) {Scanner scnr = new…

Can I get  a help with this in Java please?  Introduce a new class, called Borrower to the project. Its purpose is to represent the borrower of the CD. It should have two fields surname and libraryId; where the latter is a mix of letters and numbers, and a suitable constructor with parameters for only these two fields in the order specified above as well as appropriate accessor methods.

Create a calculator program. Get 2 numbers from the user. Create a method that adds the 2 numbers. Create a method that subtracts 1 number from the other. Create a method that multiplies the 2 numbers. Create a method that divides one number by another. It is important to check that you are not dividing by 0 here. You should be calling these methods from the main method and printing out the answers from the main method. Create a method that uses the modulus to return the remainder and the language is Java

.If the name of getBalance is changed to getAmount, does the return statement in the body of the method also need to be changed for the code to compile? Try it out within BlueJ. What does this tell you about the name of an accessor method and the name of the field associated with it?

Where did you get the 0.8 from can you provide more inforamtion please?

Create an overloaded method to calculate the volume of a box calcVolume(); calcVolume calculates the volume of a rectangle box from a box's width, length and height and then returns the result. calcVolume is overloaded for the special case of a square box, thus only takes in one number that represents width, length and height and then returns the result. Show your method definitions and logic. Call both your methods from the main method and display results.

In Java Only. User-Defined Methods. This very hard for me, please help me and leaves notes so I can really understand what's going on with the code and pull out a math book, and thank you! The Power Station Problem: A power station os on one side of a river that is pne-half miles wide, and a factory is 8 miles downstream on the other side of the river. It costs $7 per foot to run the power lines overland and $9 per foot to run them underwater. Your objective is to determine the most economical path to lay the power line. That is, determine how long the power line should run underwater and how long it should run overland, to achieve  the minimum total cost of laying the power line. Write a Java program that prompts the user to enter the following: a. The width of the river b. The distance of the factory downstream on the other side of the river. c. The cost of laying the power line underwater. D. The cost of laing the power line overland. The program then outputs the length of the…