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- Rewrite the private static int recurseMax method without using Java API public class Recursion{ public static void main(String[] args){ // My tests (DO NOT MODIFY!) int[] a = {3,2,6,4,15,7,9,8,6}; p(recurseSum(a)); // Sum should be 60 p(recurseMax(a)); // Max should be 15 // End of tests! } // Recursive methods below here... public static int recurseSum(int[] a){ // TODO: This is the wrapper method. You must complete this AND implement helper method int total = recurseSum(a, a.length); return total; } private static int recurseSum(int[] a, int i){ if (i <= 0) return 0; return (recurseSum(a, i - 1) + a[i - 1]); } public static int recurseMax(int[] a){ int max = recurseMax(a, a.length); return max; } private static int recurseMax(int[] a, int i){ if(i == 1) return a[0]; return Math.max(a[i-1], recurseMax(a, i-1)); } //…Q27 for java programing: public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0 ; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new Cat(),new Cat(),new Cat()}; for(int i = 0 ; i < cats.length; i++) cats[i].me(); System.out.print(Dog.getCount()+" woofs and"); System.out.println(Cat.getCount()+" mews"); System.out.println("=====>>>"+decision()); } class Counter { private static int count; public static void inc() { count++;} public static int getCount() {return count;} } class Dog extends Counter{ public Dog(){} public void wo(){inc();} } class Cat extends Counter{ public Cat(){} public void me( ){inc();} } The Correct answer: public static void main(String[] args) { Dog[] dogs = { new Dog(), new Dog()}; for(int i = 0 ; i < dogs.length; i++) dogs[i].wo(); Cat[] cats = { new…Does the below program use recursion to create a sierpinski triangle? Souce code: package application; public class Triangle { publicstaticvoid main(String [] args) { TriangleFrame tf = new TriangleFrame(); } } package application;import java.awt.*;import javax.swing.*; public class SierpinskiGasket extends JPanel { public SierpinskiGasket() { } public void drawTriangle (Graphics g, int x, int y, int width, int height) { if (height == 1) { g.drawRect(x, y, width, height); } else { drawTriangle(g, x + (width / 4), y, width / 2, height / 2); drawTriangle(g, x, y + (height / 2), width / 2, height / 2); drawTriangle(g, x + (width / 2), y + (height / 2), width/ 2, height / 2); } } public void paintComponent (Graphics g) { super.paintComponent(g); drawTriangle(g, 0, 0, this.getWidth(), this.getHeight()); }}
- True or False A Java method can be defined to accept a varying number of parameters.import java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public…import java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println("*".repeat(currentLength) + " "); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength) + " "); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public static…
- public class main { public static void main(String [] args) { Dog dog1=new Dog(“Spark”,2),dog2=new Dog(“Sammy”,3); swap(dog1, dog2); System.out.println(“dog1 is ”+ dog1); System.out.println(“dog2 is ”+ dog2); } public static void swap(Dog a, Dog b) { String nameA = a.getName(); String nameB = b.getName(); a.setName(nameB); b.setName(nameA); } What is the output of the main()?Multiples(): Takes an int (n) as parameter and prints first 10 multiples n in a single line using for loop. Example: 5 5,10,15,20,25,30,35,40,45,50 class Main {public static void main(String[] args) {}}Determine whether a string is a palindrome A palindrome is a string of characters that reads the same from right to left as it does from left to right, regardless of punctuation and spaces. Some famous English palindromes include the following “Madam, I’m Adam”, and “Never odd or even”. Of course, a simpler example would be the world “radar”.The specifications for this assignment are: Write and test a non-recursive solution in Java that determines whether a string is a palindrome •Your program should consist of at least two methods: (1) the main method (2) the method which performs the task of determining whether the specified string is a palindrome. You should name this method isPalindrome. You should name the class that contains your “main” method and the isPalindrome method FindPalindrome. •You must use a Stack and a Queue in your solution:Make sure to Write your own Stack and Queue based on the Vector in the Java API and use those in your solution. You should name those classes…
- Write a recursive Java method that takes a String as a parameter and returns true if the String is a palindrome. You may assume that the string only contains lower case characters (i.e. no numbers, spaces, punctuation, etc).In Java, explain public static void main(String args[]).The type of recursion implemented in the following code is a tail recursion (True or False) ? Please explain/ justify your answer. public class ClassTest { public int test(int val) { if (val <= 0){ return val +1; } else return test(val-1) - test(val-2); } public static void main(String[] args) { ClassTest obj = new ClassTest(); int result = obj.test(4); System.out.println("Output is: " + result); } }