Given the following code and assuming ArrayStackis a generic class: bool ArrayStack::doSomething() { bool result false ; if (!isEmpty()) { top--; result true ; } return result; } What method is this? pop() peek() virtual destructor default constructor
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- Create a SameItem Interface: The SameItem interface will be a generic interface.SameItem will have a single method: isSameAs(T) that returns a booleanComputer Science create a method +addToList(o:E):void that adds the object (o) to the ArrayList referenced by the instance variable list. create a method +removeFromBackOfList():E that removes the object at the back of the ArrayList and returns it.Java Programming Class Car Attributes (all private): vin: String (5 digits) make: String model: String year: int price: double Methods: Parameterized constructor for initializing a new Car instance Getters for all attributes toString method to display a Car's attributes Executable Class Create an array of at least ten Car objects. Be sure to use many with identical last years and different prices. Create an ArrayList from the array. Shuffle the ArrayList. Sort the ArrayList first by year and then by price. See page 790-791. Using the forEach method and a lambda expression, print all cars sorted as above. Create a LinkedList from the ArrayList. Create an iterator capable of cycling both forward and backward through the LinkedList. Iterate forward through the entire LinkedList but without generating any output. Then iterate backwards through the LinkedList to print the cars data.
- This class stores an ArrayList of Tile objects, sorts them, and returns them via .toString() import java.util.ArrayList; class Rack{ private ArrayList<Tile> tiles; public Rack() { tiles = new ArrayList<Tile>(); } public void addTile(Tile t) { tiles.add(t); } DO NOT CHANGE THE CODE ABOVE. ADD THE FOLLOWING METHODS: .toString() .sortHighToLow() You may also add any helper methods you want, such as swapvalues. Make sure to write the Selection Sort algorithm like in the class example, but using the Tile object's .compareTo method.public interface Rational { /** Determines whether this Rational object represents a value less than one. * @return true if this Rational is less than 1, false else public boolean islessThanOne (); } Write the class Goo that implements this interface. Goo must use an array. Your answer must include all necessary fields and any additional private methods as needed for your implementation. You may not use ArrayList, or any similar class.import java.util.ArrayList; class Rack { privateArrayList<Tile>tiles; publicRack() { tiles=newArrayList<Tile>(); } publicvoidaddTile(Tilet) { tiles.add(t); } /* DO NOT CHANGE THE ABOVE CODE. YOUR JOB IS TO ADD THE FOLLOWING METHODS: .toString() .sortHighToLow() You may also add any helper methods you want, such as swapValues. Note that we want to sort Tiles from highest value to lowest */
- NOTE: DO NOT COPY FROM ANOTHER QUESTION Directions: 1. Show the ArrayStackADT interface 2. Create the ArrayStackDataStrucClass<T> with the following methods: default constructor, overloaded constructor, copy constructor, initializeStack, isEmptyStack, isFullStack, push, peek, void pop 3. Create the PrimeFactorizationDemoClass: instantiate an ArrayStackDataStrucClass<Integer> object with 50 elements. Use a try-catch block in the main( ) using pushes/pops. 4. Exception classes: StackException, StackUnderflowException, StackOverflowException5. Show the 4 outputs for the following: 3,960 1,234 222,22213,780The interface Range is defined below:public interface Range{ void setLimits(int x, int y); int getNumber();}Implementations of Range should exhibit the following behaviour:• The setLimits method should store its parameter values somewhere to serve as the lower and upper limits of the range appropriately.• A call to getValue should return an integer that is always greater than or equal to the lower limit and less than or equal to the upper limit.The class RandomInteger is an implementation of the interface Range. It also has the following features:• It has two fields of int type, low and high, to record the lower and upper limits of the range, respectively.• It has single constructor method that takes two integers and stores them in the appropriate fields. Note: You should make use of the setLimits method.• A call to the method getNumber should return a random number that is always within the range, i.e. greater than or equal to the lower limit and less than or equal to the upper limit.…Assume Student and GradeBook classes are defined as follows: public class Student { int id; double testsMarks[]; public double getAverage(){ double sum = 0; for(double marks : testsMarks) { sum+=marks; } return sum/testsMarks.length; } } import java.util.ArrayList; public class GradeBook { String subject; ArrayList<Student> students; public Student getStudentWithMinAverage(){ } } Define the body of getStudentWithMinAverage method that shall return the student object from students ArrayList who got minimum average marks in the class. (Please write minimum code and make use of provided code, making no change in classes' structure)
- public class MyGenClass { private T1 name; private T2 stulD; private T3 CGPA; public void setStuData( ){ I/ parameters name = n; stulD = d: CGPA = g; } public void printAsString() { System.out.println( } ); I/ print all information as string public static void main(String args||) { Il Create an object stu by parameters String, Integer, Double Il Call setStuData() with any values you like /l Call printAsString() } }public class MyGenClass { private T1 name; private T2 stulD; private T3 CGPA; public void setStuData( ){ l parameters name = n; stulD = d: CGPA = g; public void printAsString() { System.out.printin( '): # print all Information as string public static void main(String args||) { Il Create an object stu by parameters String, Integer, Double II Call setStuData() with any values you like Il Call printAsString()Take the following list of methods: Student () { // Creates a student object with all fields blank Student (String name) { // Creates a student object with a set name } Student (String name, Array []) { } power (int x) { // returns x^2 } power (int x, int y) { // returns x^y } greet (String name). { // returns "Hello, + name + " !"; } "1 a) What are your options if you want to find the value of a number squared? Which would you choose if you wanted the method to say something to the user? b) What 'Student' would you call if you want to create a student when you don't have any input? c) What 'Student' would you call if you had a whole array of data to input into the student object? d) Why do you think this is a capability that Java has? What uses can you imagine for it?