Using JAVA, write a method that swaps two rows of a two-dimensional array. The row indices to be swapped are passed as parameters to the method (Assume row indices are valid indices). Write a test program to demonstrate correct operation of the method.
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Using JAVA, write a method that swaps two rows of a two-dimensional array. The row indices to be swapped are passed as parameters to the method (Assume row indices are valid indices). Write a test
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- Write a Java class that creates a 3x4 array of 12 random ints between 0 and 100. Write a method to return the sum of the elements in the last column of each row in the two-dimensional array.FOR JAVA Write a Java method that takes two 2 dimensional int arrays (a and b) and a 2 dimensional boolean array (c) where all three arrays have the same size. Your method should return an array (result) such that, if a partic- ular element in c is true, then the corresponding (same indexed) element in result must be the multiplication of the the corresponding elements of a and b. If the element in c is false, then the the corresponding element in result must be the negative of multiplication of the the corresponding element in a and b. For example ifa = {{1,2,3},{4,5}},b = {{1,2,1},{0,2}} andc = {{true,false,true},{false,true}}, then the result should be result={{1, -4, 3}{0, 10}}.FOR JAVA Write a method that takes a one dimensional integer array and an integer, and returns the index of the integer in the array. If the integer is not in the array, your program must return -1. If there are multiple occurrences of that number, your program must return the smallest index. Repeat the second question, but if there are multiple occurrences of the number, your program must return the largest index instead of the small- est.
- Write a program that first reads an integer for the array size, then reads numbers intothe array, and finally outputs how many numbers have values that are greater than theaverage. For practice reasons, try not to use the index notation of arrays (e.g. myarray[i])at all. Use pointers instead.FOR JAVA // Question is the first one, try to solve it by using the second question. Repeat the second question, but if there are multiple occurrences of the number, your program must return the largest index instead of the small- est. Write a method that takes a one dimensional integer array and an integer, and returns the index of the integer in the array. If the integer is not in the array, your program must return -1. If there are multiple occurrences of that number, your program must return the smallest index.Write a java program that finds the median of each row in a two-dimensional array then trace the program (how the program will be executed).
- Write a program in JavaScript to print intersection of 2 arrays and print that intersection arrayFirst, write a Java method merge that takes as parameter a non-empty double array representing employees’ salaries. The method merges the values of every 2 adjacent elements. put the merged values at the beginning of the array, and put 0 in the remaining positions. Suppose that the original array will contain an even number of elements. Second, write two java methods readArray(int[]a) and printArray(int[]a) that reads/writes the elements of an array passed in parameter from/to the standard input/output. Finally, Use the following main method to test your different methods: public class MergeSalary { private static Scanner input = new Scanner(System.in); public static void main(String[] args) { } } double[] salaries = new double[10]; System.out.print("Enter 10 salaries: "); readArray(salaries); merge(salaries); System.out.print("Salaries after merge: "); printArray(salaries); Hint: For the method merge, you can work on the same array or use a temporary array. Run example:…First, write a Java method merge that takes as parameter a non-empty double array representing employees’ salaries. The method merges the values of every 2 adjacent elements. put the merged values at the beginning of the array, and put 0 in the remaining positions. Suppose that the original array will contain an even number of elements. Second, write two java methods readArray(int[]a) and printArray(int[]a) that reads/writes the elements of an array passed in parameter from/to the standard input/output. Finally, Use the following main method to test your different methods:
- Write the method sum2D() in JAVA which accepts a two dimensional integer array and returns the sum of all the elements of the array.Write a java program to swap the first and the last elements of the array without creating a new array. The array may have any length.Write a program in java that randomly fills in 0s and 1s into an n-by-n matrix, prints the matrix, and finds the rows and columns with the most 1s. (Hint: Use two ArrayLists to store the row and column indices with the most 1s.)