Consider a 2D int-array that contains the brightness values of the pixels in an image. Write a method named getBrightestRow that takes a 2D array (i.e., pixels of an image) as the input parameter and returns the brightest row number in the array. The brightness value of a row is the average of the brightness values given in the pixels of the row. For example, in the 2D array given below, the method will return 1.

Write a class method named countOccurences that returns the number of times a particular integer occurs in an array of integers. The integer and the array will both be parameters.

Based on the information in the screenshots, please answer the following question below. The language used is Java and please provide the code for it with the explanation. Create a testing class named "PlanTest". Under this class, there needs to be another static method besides the main method: You will need to create a static method named "prerequisiteGenerator" under "PlanTest", which return a random 2D array containing prerequisite pairs (e.g., {{1, 3}, {2, 3}, {4, 2}}). The value range of a random integer is [0, 10] (inclusive). This method will accept an integer parameter, which specifies the length of the returned array: int[][] pre = prerequisiteGenerator(3); // possibly {{1, 3}, {2, 3}, {4, 2}} Under the main method, you will need to use prerequisiteGenerator to generate random prerequisite pair lists, and perform tests on plan method at least three examples by printing proper messages. Given 4 courses and prerequisites as [[1,0], [2,0], [3,1]] It is possible to take all...

Show your code and console with the exact sample run. Thankyou

You are given an array of n integers. Write a java method that splitsthe numbers of the array into two equal groups so that the GCD of all numbers in the second group is equal to one and the GCD of all numbers in the first group is not one. After splitting the numbers display the resulting groups as shown in the sample run below. Note: 1. The array has even size. 2. All elements of the array are less than 100. You are not allowed to define new arrays. 3. 4. You are not allowed to definenew methods or use methods from java libraries. Sample run of the method: Inputarray: (6,7,9,4,3,2} Output Group two: (7,9,3} Group one: (2,4,6} I Ignore Order of numbers. Order is not important //Ignore Order of numbers. Order is not important

You have an integer matrix representing a plot of land, where the value at that location represents the height above sea level. A value of zero indicates water. A pond is a region of water connected vertically, horizontally, or diagonally. The size of the pond is the total number of connected water cells. Write a method to compute the sizes of all ponds in the matrix.EXAMPLEInput:0 2 1 00 1 0 11 1 0 10 1 0 1Output: 2, 4, 1 (in any order)

This question is in javaYou are walking along a hiking trail. On this hiking trail, there is elevation marker at every kilometer. The elevation information is represented in an array of integers. For example, if the elevation array is [100, 50, 20, 30, 50, 40], that means at kilometer 0, the elevation is 100 meters; at kilometer 1, the elevation is 50 meters; at kilometer 2, the elevation is 20 meters; at kilometer 3, the elevation is 30 meters; at kilometer 4, the elevation is 50 meters; at kilometer 5, the elevation is 40 meters. a) Write a method called dangerousDescent that determines whether there is a downhill section in the hiking trail with a slope of more than -0.05. The slope is calculated by the rise in elevation over the run in distance. For example, the last kilometer section has a gradient of -0.01 because the rise in elevation is 40 - 50 = -10 meters. The distance covered in 1000 meters. -10 / 1000 = 0.01. Your method should return true if there exists a dangerous...

Write a method that takes a RegularPolygon as a parameter, sets its number of sides to a random integer between 10 and 20 inclusive, and sets its side length to a random decimal number greater than or equal to 5 and less than 12. Use Math.random() to generate random numbers. This method must be called randomize() and it must take an RegularPolygon parameter. You can call your method in the program's main method so you can test whether it works, but you must remove or comment out the main method before checking your code for a score. You will also need to make sure you do not remove the import statement "import testing.Math" as this is required to check your code for a score.

Write a method that takes a rectangular two-dimensional array of type int. The method returns true if the sum of the even elements of the parameter array are larger than the sum of the odd elements, otherwise the method returns false. public static boolean sum(int[]0 in) Taken array Result 1 -3 17 5 -2 30 true 1 3 -1 -1 -3 -4 7 -1 10 false -1 3 -4 15

Submit the code (copy&paste) with a screen shot of the same sample run as below. 1. Write a class ArrayMethods, where the main method asks the user to enter the num ber of inputs and stores them in an array called myList. Create a method printArray that prints the array myList. Create another method copyArray that copies the array using System.arraycopy, and multiplies each element in the copied array by 2, then finally returns the array to the main method. Invoke the printarray again to print the array returned by copyArray. In summary, see below. main method does: asks user for inputs and stores in array. Invoke printArray. Invoke copyArray. Invoke printArray again. printArray: void method, parameters passed is an array, prints an array copyArray: array-returningmethod, parameters passedis an array, copies array, multiplies 2 to each element in the copied array, returnsthe copied array

2. Write a method that takes a rectangular two-dimensional array of type int and returns a valu of type int. The method returns the number of rows with negative sum. A row has a negative s if the sum of all its elements is less than 0. public static int countNegativeSum(int[][] in) Taken array Result 1 -3 17 -5 -5 14 -5 -2 30 -19 -8 -8 1 1 3 -1 -4 78 8 -3 -5 -1 -1 3 -4