using java language Scanners are handy for reading input that is stored in a file. For this exercise, create a file called "numbers.txt" that contains the following data: 1.0 2.0 3.0 4.0 2.0 3.0 4.0 5.0 3.0 4.0 5.0 6.0 7.0 6.0 7.0 8.0 9.0 10.0 Read each line, convert the numbers in each line to doubles, and print the total for each row.
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using java language
Scanners are handy for reading input that is stored in a file. For this exercise, create a file called "numbers.txt" that contains the following data:
1.0 2.0 3.0 4.0
2.0 3.0 4.0 5.0
3.0 4.0 5.0 6.0 7.0
6.0 7.0 8.0 9.0 10.0
Read each line, convert the numbers in each line to doubles, and print the total for each row.
The below given Java program will obey the following rubrics:
- Including necessary data packages.
- In the main() method, creating a file instance.
- Instantiating Scanner class.
- While loop will read data from the file.
- Reading data from the file and storing it in s string
- Displaying string s, on the console.
- Splitting the values of String and store them in the values array.
- Creating a new array d of double types, the size of this array is the same as the values array.
- for loop, will parse all the data to double and storing in the d array.
- Another for loop, the statement is used for calculating the sum.
- Finally displaying calculated sum on the console.
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- Write a java code that does the following: Opens a file named NumberList.txt, uses a loop to write the numbers 1 through 100 to the file, and then closes the file. Opens the NumberList.txt file and reads all of the numbers from the file and displays them, and then closes the file. Opens the NumberList.txt file and reads all of the numbers from the file, calculate the sum of these numbers and displays their total. Opens a file named NumberList.txt for writing, but does not erase the contents of the file if it already exists.The problem is to guess what number a computer has in mind. You will write a program that randomly generates an integer between 0 and 100, inclusive. The program prompts the user to enter a number continuously until the number matches the randomly generated number. For each user input, the program tells the user whether the input is too low or too high, so the user can make the next guess intelligently. Filename: GuessNumber.javaBuild an application that will generate a random number and then have the user guess it. hints below : First line of your program: import java.util.Scanner; To use math symbols: π : Math.PI en : Math.pow(Math.E,n) To read input from the keyboard: Scanner userInput = new Scanner(System.in); x = userInput.nextInt(); If you can’t seem to read the next int, try adding this after the nextInt: (there may be a “\n” left on the input buffer) x=userInput.nextLine(); To write to the console: System.out.println(x); System.out.println(“something to print”);
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