Java's Scanner class has many hasNext methods that can check input for a specific type (e.g. hasNextDouble). The wonderful thing about the hasNext methods is that they leave the input they examine on the input buffer, rather than consuming it. This allows for you to properly read the data when hasNext returns true or flush the data if hasNext returns false. True O False
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- I want to develop an application for Knight's Tour Chess Game in java where the board is an eight by eight - 2D array board. Each square should be 0 in the beginning and as the knight moves in L shaped moves. The application is developed to move the knight around the chessboard and then keep a counter that varies from 1 to 64. Record the latest count in each square the knight moves to. Test each potential move to see if the knight has already visited that square. Test every potential move to ensure that the knight does not land off the chessboard. I want to run the application with random initial position.package filterSort;import java.io.File;import java.io.FileNotFoundException;import java.util.Arrays;import java.util.Scanner;import java.util.*; public class FilterSort { /*** Allocates and returns an integer array twice the size of the one* supplied as a parameter. The first half of the new array will* be a copy of the supplied array and the second half of the new* array will be zeros.** @param arr the array to be copied* @return array twice the size of <tt>arr</tt> with its initial* elements copied from <tt>arr</tt>* @throws NullPointerException if <tt>arr</tt> is null.*/public static int[] doubleArrayAndCopy(int[] arr) {int len = arr.length;int max = arr.length * 2;int[] copyArr = Arrays.copyOf(arr,max);int length = copyArr.length-1;Arrays.sort(copyArr, 0, length);return copyArr; } public static void main(String[] args) {int[] data = new int[8];try {File file = new File("data.txt");Scanner myReader = new Scanner(file);for(int i = 0;…1. Copy some text from a news article, paste it in the Notepad++ editor and save it in a textfile named testtext.txt;2. Write a Java program to read the words in the text file into an ArrayList object,display the information about how many words there are in the text file, and display thewords in the order they appear in the text file. Then sort the array and display the sortedarray. Take a screenshot of the output window.3. Submit your text file, the screenshot, and the Java source code file
- Write a for loop to print all elements in courseGrades, following each element with a space (including the last). Print forwards, then backwards. End each loop with a newline. Ex: If courseGrades = {7, 9, 11, 10}, print: 7 9 11 10 10 11 9 7 Hint: Use two for loops. Second loop starts with i = courseGrades.length - 1. import java.util.Scanner; public class CourseGradePrinter {public static void main (String [ ] args) {Scanner scnr = new Scanner(System.in);final int NUM_VALS = 4;int [ ] courseGrades = new int[NUM_VALS];int i; for (i = 0; i < courseGrades.length; ++i) {courseGrades[i] = scnr.nextInt();} /* Your solution goes here */ }}Check this code for this assignment: It runs successfully on Netbeans IDE but there is no output.// Create a Scanner object to read user input Scanner input = new Scanner(System.in); // Prompt the user to enter the street number System.out.print("Enter street number: "); int streetNumber = input.nextInt(); input.nextLine(); // Prompt the user to enter the street name System.out.print("Enter street name: "); String streetName = input.nextLine(); // Prompt the user to enter the number of rooms in the house System.out.print("Enter number of rooms: "); int numRooms = input.nextInt(); input.nextLine(); // Create an array to store the room types String[] roomTypes = { "living", "dining", "bedroom1", "bedroom2", "kitchen", "bathroom" }; // Create an array to store the area of each room int[] roomAreas = new int[6]; // Prompt the user to enter the area of each room…Ask the user for a filename. Display the oldest car for every manufacturer from that file. If two cars have the same year, compare based on the VIN. i am having trouble getting my code to work I have this code: import java.io.File; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.Scanner; class Car { String manufacturer; String model; int year; String vin; public Car(String manufacturer, String model, int year, String vin) { this.manufacturer = manufacturer; this.model = model; this.year = year; this.vin = vin; } public String getManufacturer() { return manufacturer; } public void setManufacturer(String manufacturer) { this.manufacturer = manufacturer; } public String getModel() { return model; } public void setModel(String model) { this.model = model; } public int getYear() { return year; } public void setYear(int year) { this.year = year; } public String getVin() { return vin; } public void setVin(String vin) { this.vin = vin; } } public class Demo {…
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- Help debugging code written in python to get the output from the attached image, def main(): # set the initial month and declarationmonth = 1old_adults = 0old_babies = 0adults = 1 # initial adult pairbabies = 0 # initial babies pairtotal = 0 # storing the total number of rabbit pairsmax = 500 # maximum number of rabbit pairs that can be accomodated# output filefile = open("rabbit_sim.txt",'w')# header of output filefile.write("# Table of rabbit pairs\n")file.write("Month, Adults, Babies, Total\n")# calculate the total number of rabbit pairs for the monthtotal = adults+babies# loop that continues till total rabbit pairs < maxwhile total < max:# output the counts to filefile.write(str(month)+", "+str(adults)+", "+str(babies)+", "+str(total)+"\n")month += 1 # increment the month# set the old_adults and old_babies to current adults and babiesold_adults = adultsold_babies = babies# calculate the adults and babies for next monthbabies = adultsadults = old_adults + old_babiestotal =…Write a ONE java program to implement the following requirements: Design 3 classes: Shape8, Circle8, Square8 and 1 interface ComputeData as shown below. Shape8 is an abstract class ComputeData is an interface Italicized methods mean abstract methods Shape8 -color: String ComputeData + getDiagonal (): double note: diagonal = Math.sqrt(width*width*2) -area: double + Shape8(String color) + getArea ():double + setArea (area: double):void +getColor():String +compareto(o: Shape8): int +toString(): String Square8 -width: double Circle8 -radius: double | +Circle8(color: String, radius: double) +toString(): String + Square8( color: String, width: double) +toString(): String ..necessary methods note: area=radius*radius*Math.PI ·..necessary methods note: area=width*widthFor this assignment, your program will read characters from a string for the purpose of assigning data from that string to the private data members of a class. This simulates a program that would read a record in from a stored file into memory for the purpose of making changes to that record. Below is a template of your program. For this assignment, you MUST use loops (100 pts off if not using loops) and you cannot use the following methods: indexOf() substring() subsequence().