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Engineering

Computer Science

Rprofile - the first chunk of code executed

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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Computer Science c sharp a program that will let you creat new cars, list all previous cars, update the other cars, and delete them. also be able to read from a text file and add to the text file. each car will have the following information VIN,model, make, color , and year. and store the information in a car object.
C PROGRAMMING HELP I need help fixing an old assignment of mine. The point of the script is to read the pasted/attached Number_new.txt file's contents, meant to represent a classes' final grades out of 100 percent, and print an .exe screen as well as another .txt file that repeats the grade number with a letter grade and a PASS or FAIL next to it. At the end it needs to say how many students passed and how many failed. Nothing too complicated with the grading, just 90.0 and up is an A, 80.0 to 89.99 is a B, etc. And of course, anything below 60.0 is an F/FAIL. Please NO IOSTREAM.H OR CACIO.H! I cant use those header files. Below is the script: #include<stdio.h>#include<math.h>#define THEFILE "Number_new.txt" int main(){ float r0[10]; float rr[10]; FILE *fp; char line[81]; fp = fopen(THEFILE, "Number_new.txt"); if (fp != NULL) { /* The file is open. */ printf("%7s %7s %7s %7s %7s %7s %7s %7s %7s %7s\n", "0", "0.01",…
• Use a while loop • Use multiple loop controlling conditions • Use a boolean method • Use the increment operator • Extra credit: Reuse earlier code and call two methods from main Details: This assignment will be completed using the Eclipse IDE. Cut and paste your code from Eclipse into the Assignment text window. This is another password program. In this case, your code is simply going to ask for a username and password, and then check the input against four users. The program will give the user three tries to input the correct username-password combination. There will be four acceptable user-password combinations: • alpha-alpha1 • beta-beta1 • gamma-gamma1 • delta - delta1 If the user types in one of the correct username-password combinations, then the program will output: "Login successful." Here are a couple of example runs (but your code needs to work for all four user-password combinations): Username: beta Type your current password: beta1 Login successful. Username: delta Type…
Write a code segment that searches a Grid object for a negative integer. The loop should terminate at the first instance of a negative integer in the grid, and the variables row and column should be set to the position of that integer. Otherwise, the variables row and column should equal the number of rows and columns in the grid. *Python
To produce the plot below: 4500000 Born in 2010 Born in 2014 4400000 4300000 4200000 4100000 4000000 0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 Please fill in the blanks of the following code block: plt.plot(age, born2010, c = 'blue', label = 'Born in 2010') plt.plot(age, born2014, c = '[A]', label = plt.legend() plt.show()
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my_round(number, integer): Based on the built-in round(...) function. Takes an integer or float and returns a rounded float value that is the number rounded to the second argument's decimal place. First argument can be any float or integer. Second argument must be an integer. Examples: my_round(1234.5678, 2) and round(1234.5678, 2) should return 1234.57. my_round(1234.5678, -2) and round(1234.5678, -2) should return 1200.0.
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COMPLETE TO DO's (do not copy other responses to this question if you do ill downvote) recv.cpp #include <stdio.h>#include <stdlib.h>#include <string.h>#include <fcntl.h>#include <mqueue.h>#include <sys/stat.h>#include <sys/types.h>#include <sys/mman.h>#include <unistd.h>#include <signal.h> // The name of the shared memory segment#define MSQ_NAME "/cpsc351queue" // The name of the file where to save the received file#define RECV_FILE_NAME "file__recv" #define MQ_MSGSIZE 4096 /*** Receive the file from the message queue*/void recvFile(){ // TODO: Define a data structure // of type mq_attr to specify a // queue that can hold up to 10 // messages with the maximum message // size being 4096 bytes // The buffer used to store the message copied // copied from the shared memory char buff[MQ_MSGSIZE]; // The total number of bytes written int totalBytesWritten = 0; // The number of bytes written int…
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change this code to C++ #include <stdio.h> #include <stdlib.h> /** * structure to hold each point */ struct Point3D { float x; float y; float z; }; /** * Parses all the vertices from the path. * @param path The input file path. * @param points The points storage. * @param numPoints The number of points. * @return points Dynamically allocated array of points. * @return The center of mass. */ struct Point3D parseInput(const char *path, struct Point3D **points, int *numPoints) { // to hold each record char f_or_v; float x; float y; float z; // to store the file pointer FILE *inFile; // to iterate the points array int it; // structure to store the center of mass struct Point3D centerOfMass; // opening the file inFile = fopen(path, "r"); // counting the number of points *numPoints = 0; while(!feof(inFile)) { fscanf(inFile, "%c %f %f %f\n", &f_or_v, &x, &y, &z); *numPoints += f_or_v == 'v'; } // dynamically allocating space // for the points *points =…