oes the following: 1.Declares but do
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A: Code Sample Output
In Java
Assume code that has imported Scanner and instantiated it for keyboard input as stdln. Wtire a code fragment that does the following:
1.Declares but does not Initialize roots to be an array of double variables.
2. Prompts the user to enter the number of elements and then initializes roots with an array object whose length equals the input.
Step by step
Solved in 2 steps
- TableAA.java Write a program that will store a multiplication table in a 2-D array. The user will enter how many lines (rows) it will have. The table will be printed to the screen. (Make it look nice – consider using printf.) This program will contain a static method. This method will take in an integer (the user’s number) and it will return a 2-D array. The code inside of the method will create the array, fill it with all the appropriate values that one would expect in a multiplication table, and then return that filled array. In the main method, you will ask the user how many lines they want to see and then you will use your static method to get the array. Once you have the array back from the static method, use nested for loops to print it in table form. See samples on the following pages. Program only needs to run once. Add try/catches so the user can only enter positive integers (1 and higher).In Java Assume code that has imported Scanner and instantiated it for keyboard input as stdln. Wtire a code fragment that does the following: 2. Prompts the user to enter the number of elements and then initializes roots with an array object whose length equals the input.In javacode: Use ArrayList to create an array called myAL of type integer. --Fill the array with the values 5, 10, 15, 22, 33. --Print the array (use enhanced for loop). --Insert the value 25 between 10 and 15 and print the array.--Remove 2 elements on index 1 and 3 and then print the array.--Print if the array contains the value 123 or not.--Print the index of the element 22.--Print the size of the array.
- Blackjack is a card game where the goal is to reach a score of 21. Create a java version of this game with the following requirements. Extend the JPanel class and create an array of 52 cards. Add four sets of numbers from 1 to 10. Use J for Jack, Q for queen, K for king, and A for ace. Jack through king will have a value of 10, and the ace will have a value of 11. Deal two cards to the user and two cards to the computer. Do not show the value of the computer's first two cards to the user. Add buttons Hit, Stay, and Reset. If the user selects the "Hit" button, randomly select one of the cards from the array, and give it to the user. (After selecting a card, do not reuse this index during the rest of the game.) If the dealer has less than 21, "hit" the dealer, too. When the user selects the "Stay" button, add up the card values. The winner is the person who is closest to 21 without going over. Name the class Blackjack.java.Complete the following program ArrayMax.java. The function max() should return a new array containing the max value of each corresponding value in two arrays. Below is the code, with the section that needs to be completed. The output should look exactly like what is given below, alsoTrue or False? In Java, an array is a primitive type that need not be instantiated.
- 2. Rotate Left k cells Use Python Consider an array named source. Write a method/function named rotateLeft( source, k) that rotates all the elements of the source array to the left by 'k' positions. You must execute the method by passing an array and number of cells to be shifted. After calling the method, print the array to show whether the elements have been shifted properly. Example: source=[10,20,30,40,50,60] rotateLeft(source,3) After calling rotateLeft(source,3), printing the array should give the output as: [ 40, 50, 60, 10, 20, 30]in java Create two arrays with same length n: - Array A with integer numbers that user will insert- Array B with random numbers from 0 to 100.- Find sum of both arrays,- Find maximum values of both array and compare them: .if maximum of 1 st is lower then maximum of 2nd array: print sums of both arrays.if maximum of 1st is greater then maximum of 2nd array print 2nd array (use println)otherwise print first array in reverse.1. Create a java program from the supplied starter code: TestRecursion.java.2. The array given can be used or you may input a different one and search for a value in it. YOU MUSThave a minimum of 11 elements in your array if you do not use mine.3. Create a method bubleSortRecur() that performs a bubble sort using recursion. search. The methodaccepts two parameters: an array of integers (any order) and the length. Print the original array, in themain() method after the sort is called.4. Call another method, BinarySearchRecur() that performs binary search recursively. It should take 4parameters: a sorted array of integers, start position (index) and end position(index) of the array, and theinteger value to find. It should return the index of the element if found, if not then it should return -1.Print the one integer being searched, and its index position from within the main() method PLEASE ADD TO THE CODE GIVEN BELOW AND FOLLOW THE SLASHED LINES FOR ASSISTANCE import java.util.Arrays;…
- JAVAWrite a program that searches person's name and display all matched name. For example, if a user inputs the letter "Davis", the program searches all name which includes "Davis" in an array. Then, display all matched names on the screen. You must declare a single dimensional array which has all people’s name. Use methods of string classDescription Write a Java program, called LinearSearch1 that contains a static method called findElement() that accepts a double array and a double as its parameters and return a boolean value if the double number entered is contained in the double array. In the main method you should use user input to take the element you wish to search for in the array. There is code there for your array, DO NOT CHANGE THIS CODE. Your program should call findElement() to check for the occurence of the double number entered in the array. You should print an appropriate message to the screen if the element is found. Output A message stating if the element is found. Sample Input 1 678.954 Sample Array 1 345.6 678.954 234.534 -89.23 Sample Output 1 678.954 was found in the array Sample Input 2 65.45 Sample Array 2 345.6 678.954 234.534 -89.23 Sample Output 2 65.45 was NOT found in the arrayIn java when an array is passed to a method, what does the method receive? A. The reference of the array B. A copy of the array C. Length of the array D. Copy of first element