5. Write the java code to achieve the following: a. Declare an array alpha of 20 columns and 10 rows of the type int. b. Store 1 in the first row and 2 in the remaining rows.
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- 1. Write the java code to achieve the following: a. Declare an array alpha of 20 columns and 10 rows of the type int. b. Store 1 in the first row and 2 in the remaining rows.Please help me to solve the error in the following java code. The question requirement is to merge k arrays into a single sorted array, the output should be: (Winnie, 0), (Eason Chan, 40), (Gloria Tang, 60), (Andy Lau, 60), (McDull, 60), (Denise Ho, 60), (Jennifer Chan, 70), (Joey Yung, 80), (Kay Tse, 90), (Mickey, 90), (Jacky Cheung, 95), (Teddy, 95), (Anita Mui, 100), (Peppa, 100) import java.util.*;import java.util.Arrays; public class StableMerger { static class Student { String name; double grade; public Student(String n, double g) { name = n; grade = g; } public String toString() { return "(" + name + ", " + grade + ")"; } } public static Student[] merge(Student[][] a) { //↓↓↓↓↓↓error code↓↓↓↓↓↓ PriorityQueue<Student> queue = new PriorityQueue<Student>(); int total=0; //add arrays to heap for (int i = 0; i < a.length; i++) {…Indicate true or false for the following statements: a. Every element in an array has the same type. b. The array size is fixed after an array reference variable is declared. c. The array size is fixed after it is created. d. The elements in an array must be of a primitive data type
- 2. Given the following code, and provided initialized variables, provide answers for parts (a), (b) and (c) under the commented sections below. int[] testScoresArray = { 20, 40, 10 };int total = 0; double average;for (int index = 0; index < testScoresArray.Length; index++){ // (a) write one line of code that would add each array element to the accumulator variable “total”}// (b) write one line of code to calculate the average // (c) write one line of code to display the average in a message box, formatted to two decimal places.Write pseudo code for given statemente. The amount variable is set to 0, and then each is called on the array. Each of the values in the array is passed to the block. Each time the block is called, amount is updated:Write Java statements to accomplish each of the following tasks: a) Display the value of element 22 of array myArray. b) Initialize each of the five elements of one-dimensional integer array myArray2 to -1. c) Find the sum of the elements of an integer array myArray3 e) Determine and display the smallest value contained in 200-element floating point array myArray4.
- Given the Array declaration below, determine the output: int T[8] = {2, 3, 7, 9, -1, 2, 4, 5}; int x = 5; cout << T[x-2] / T[12-2*x]; int y = -3; cout << pow(T[y+4],T[3-y]);Mark the following statements as true or false. A double type is an example of a simple data type. (1) A one-dimensional array is an example of a structured data type. (1) The size of an array is determined at compile time. (1,6) Given the declaration: int list[10]; the statement: list[5] - list[3] * list[2]; updates the content of the fifth component of the array list. (2) If an array index goes out of bounds, the program always terminates in an error. (3) The only aggregate operations allowable on int arrays are the increment and decrement operations. (5) Arrays can be passed as parameters to a function either by value or by reference. (6) A function can return a value of type array. (6) In C++, some aggregate operations are allowed for strings. (11,12,13) The declaration: char name [16] = "John K. Miller"; declares name to be an array of 15 characters because the string "John K. Miller" has only 14 characters. (11) The declaration: char str = "Sunny Day"; declares str to be a string of an unspecified length. (11) As parameters, two-dimensional arrays are passed either by value or by reference. (15,16)(Practice) a. Write output statements using cout that can be used to display values from the first, third, and seventh elements of each array declared in Exercise 2. b. Write a for loop that can be used to display values for the complete array declared in Exercise 2.
- (Practice) Write correct notation for the first, third, and seventh elements of the following arrays: a. int grades[20] b. double volts[10] c. double amps[16] d. int dist[15] e. double velocity[25] f. double time[100]1. A.Write a program for displaying the string declared in an array, str[] = "hello",in reverse order of characters using pointers. B.Write a program for initializing from another vector that will output 10 20 30#include <stdio.h> int main(){ int arr[10]; int i; for (i=0; i<10; i++){ arr[i] = i; } for (i=0; i<10; i++){ printf("arr[%d] = %d\n", i, arr[i]); } return 0;} Copy the code and modify it as follows: Add another separate array of 10 integers. The following code parts are to be added (in the same order as specified) after the printing of the values of the first array:(1) Copy the content of the first array to the second array. Add 10 to each of the values of the second array. Make use of a single loop to achieve this part.(2) Print each element of the second array. Make use of another loop for this part