Create a function that returns the frequency distribution of an array. This function should return an object, where the keys are the unique elements and the values are the frequency in which those elements occur. Examples get Frequencies (["A", "B", "A", "A", "A"]) →{A: 4, B: 1 } get Frequencies ([1, 2, 3, 3, 2]) get Frequencies ([true, false, true, false, false]) - {"1": 1, "2": 2, "3": 2 } - { true: 2, fal

Create a function that returns the frequency distribution of an array. This function should return an object, where the keys are the unique elements and the values are the frequency in which those elements occur. Examples get Frequencies (["A", "B", "A", "A", "A"]) →{A: 4, B: 1 } get Frequencies ([1, 2, 3, 3, 2]) get Frequencies ([true, false, true, false, false]) - {"1": 1, "2": 2, "3": 2 } - { true: 2, fal

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Real World Example You work at a car dealership and your boss asks you to get the color of a car. He tells you the parking lot to get it from (the object you're searching) and then writes exactly where it is. row1 [0].color, he could also give you this direction as an array ["row1", "[0]", "color"]. If there is no color he tells you to tell him "no color found" (the default value). You follow his instructions and return "red". Examples = { "a": [{ "b": { "c": 3 } }] } var object get (object, "a[0].b.c") → 3 get (object, ["a", "0", "b", "c"]) -3 get (object, "a.b.c", "default") "default"
Real World Example You work at a car dealership and your boss asks you to get the color of a car. He tells you the parking lot to get it from (the object you're searching) and then writes exactly where it is. row1 [0].color, he could also give you this direction as an array ["row1", "[0]", "color"]. If there is no color he tells you to tell him "no color found" (the default value). You follow his instructions and return "red". Examples = { "a": [{ "b": { "c": 3 } }] } var object get (object, "a[0].b.c") → 3 get (object, ["a", "0", "b", "c"]) -3 get (object, "a.b.c", "default") "default"
C++
in C programming Write a main function that declares an array of 100 doubles.In a for loop, assign each of the doubles a random number between 0.50 and 50.00. Here’s how.array[i] = (double) (rand() % 100 + 1) / 2.0;Output the elements of the array in 10 columns that are each 6 spaces wide. Each row in the output will have 10 values. The doubles will be printed with 2 places of accuracy past the decimal.The output of this one-dimensional array requires a single loop with an if statement inside. Even though the 100 numbers are going to be presented as a table of numbers, they are still just a list in memory.
Real World Example You work at a car dealership and your boss asks you to get the color of a car. He tells you the parking lot to get it from (the object you're searching) and then writes exactly where it is. row1 [0].color, he could also give you this direction as an array ["row1", "[0]", "color"]. If there is no color he tells you to tell him "no color found" (the default value). You follow his instructions and return "red". Examples = { "a": [{ "b": { "c": 3 } }] } var object get (object, "a[0].b.c") → 3 get (object, ["a", "0", "b", "c"]) -3 get (object, "a.b.c", "default") "default"
Student: Michael Reyes 2. Write a Java program that would resemble a payroll system. An input window that will accept the employee number and the number of days of rendered work. A 2d-ArrayList that contains the employee number and the rate per day is to be searched and used to compute the gross salary. Gross salary is computed by multiplying the number of days of rendered work by the rate per day of the particular employee. If the gross salary computed is greater than 100,000 the tax is 20% of the gross salary, otherwise, the tax is 10%. Deduct the tax from the gross salary to get the net pay. Display the employee number, gross salary, tax deduction, and net pay in an output window. Design your own input/output windows. (USE OOP CONCEPT JFRAME)
For any element in keysList with a value greater than 50, print the corresponding value in itemsList, followed by a comma (no spaces). Ex: If the input is: 32 105 101 35 10 20 30 40 the output is: 20,30, 1 #include 2 3 int main(void) { const int SIZE_LIST = 4; int keysList[SIZE_LIST]; int itemsList[SIZE_LIST]; int i; 4 6 7 8 scanf("%d", &keysList[0]); scanf ("%d", &keysList[1]); scanf("%d", &keysList[2]); scanf("%d", &keysList[3]); 10 11 12 13 scanf ("%d", &itemsList[0]); scanf ("%d", &itemsList[1]); scanf("%d", &itemsList[2]); scanf ("%d", &itemsList[3]); 14 15 16 17 18 19 /* Your code goes here */ 20 21 printf("\n"); 22 23 return 0; 24 }
A dynamic array is exactly as it sounds.
1 int[] a = new int[n]; 2 a[0] = 0; a[1] = 1; 3 int x = 0; 4 for (int i = 2; i < n; i++) { 5 x = 3 * (i-1) * (i-1); 6 x += 3 * i - 2; 7 a[i] = a[i-1] + x; 8 } The code can be simplified by replacing lines 5, 6, 7 with a single line of code. Write the single line of code below:
In C++ language, write a program to print "Junior" if the given array element starts with 'J' and print "Senior" if the array element starts with 's'. Print the name of the player and the message Junior" or "Senior" accordingly. string names [5] = {"J-Liam", "S-Naoh", "S-Elijah", "J-James", "S-Henry"};
Main difference between an array and an ArrayList is that an ArrayList can store more data types an ArrayList can store more elements an ArrayList executes faster for retrieval and insertion an ArrayList takes care of the memory management automatically an ArrayList uses positions and an array uses indices
Real World Example You work at a car dealership and your boss asks you to get the color of a car. He tells you the parking lot to get it from (the object you're searching) and then writes exactly where it is. row1 [0].color, he could also give you this direction as an array ["row1", "[0]", "color"]. If there is no color he tells you to tell him "no color found" (the default value). You follow his instructions and return "red". Examples = { "a": [{ "b": { "c": 3 } }] } var object get (object, "a[0].b.c") → 3 get (object, ["a", "0", "b", "c"]) -3 get (object, "a.b.c", "default") "default"