you are trying to store the scanner input into the array. you should specify a separate variable. Arrays are zero-indexed, so when getting a value from array use ArrayName[someNumber] where someNumber refers to the element in the array. the first element starts at 0. int i = input.nextInt(); System.out.println(ColourOne[i]); solved Java array what should i … Read more
Does this meet your question? public static void main(String[] args) { Student[] studentarr = new Student[5]; for(double i = 0; i < 5; i++); { studentarr[i] = new Student(params…); } studentarr[0].someStudentMethod(); } solved (JAVA) I need help creating a class with getters and setters, creating a class with an array and then calling upon the … Read more
use the following custom method -(NSArray *)stringArrayFromJsonFile:(NSString *)jsonFileName withKey:(NSString *)key { NSData *fileContents = [NSData dataWithContentsOfFile:[[NSBundle mainBundle] pathForResource:jsonFileName ofType:@”json”]]; NSError *error; NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:fileContents options:kNilOptions error:&error]; NSArray * stringArray = [dict objectForKey:key]; return stringArray; } now call that method like NSArray* stringArray = [self stringArrayFromJsonFile:@”yourJsonFileName” withKey:@”categories”]; 1 solved How to Parse an Array … Read more
In the first code snippet you’re passing the value of the numbers variable. In the function you change a local variable, and doing so has no effect on the variable is the calling function. In the second snippet you correctly pass the address of numbers so it can be set in the function, and the … Read more
You mean like this?: $array = array( array(‘id’ => 1, ‘status’ => -1), array(‘id’ => 2, ‘status’ => 1), array(‘id’ => 3, ‘status’ => 2), array(‘id’ => 4, ‘status’ => 2), array(‘id’ => 5, ‘status’ => 2) ); $statuses = array(); foreach($array as $one){ if(!isset($statuses[$one[‘status’]])){ $statuses[$one[‘status’]] = 0; } $statuses[$one[‘status’]]++; } $newArray = array(); foreach($statuses … Read more
var itemCounts = list.GroupBy(l => l) .Select(g => new { key = g.Key, count = g.Count()}); 3 solved I want count uniques along with value in array? [duplicate]
The snippet below will work, using standard LINQ: var nearestBelow = newValue – array.Where(n => n <= newValue) .Min(n => newValue – n); solved C# Nearest Low Value in array [closed]
If you don’t know the external indice, you’d have to loop through every element in the array and compare the values of their x/y coordinates to your given coordinates, then return the ID when you find a match, or some sentinel value if you reach the end without finding a match. 0 solved Accesing 2d … Read more
I would look at these lines here: double xPoint[][][] = new double[value][fps][64]; //… for (int j = 0; j < (44100 / fps); j += ((44100 / fps) / 64)) { xPoint[counter][i][j] = magnitude[counter][i][j]; Note that the inputted fps is 30, so ((44100 / 30) / 64)) = 22.96875 (or 22 as an int). So … Read more
Assuming you have the number of rows “r” and the number of columns “c”, you can do this: int **arr; arr = malloc(r*sizeof(int*)); for(int i=0; i < r; i++) { arr[i] = malloc(c*sizeof(int)); } this dynamically allocates an array of pointers to integers, and then allocates arrays of integers to each pointer. Don’t forget to … Read more
The following is wholly untested! The Object Orientated style of using mySQLi is considerably less verbose than the procedural style and alas your code is vulnerable to SQL injection due to the use of POST data directly used within the SQL statement. You should consider using Prepared Statements to mitigate this threat. It appears that … Read more
I assume you want JS, despite the example being in gods know what const isLeapYearHelper = (year) => (year % 400 == 0 ? true : year % 100 == 0 ? false : year % 4 == 0 ? true : false) const isLeapYear = (str) => { const date = new Date(str) const … Read more
Your error is from these lines: Console.WriteLine(rea.ReadLine()); ad.Add(Int32.Parse(rea.ReadLine())); What’s happening is you are getting the count of the number of lines in the file. Say your file has 10 lines. When the loop reaches the last line and you call ReadLine method in Console.WriteLine(rea.ReadLine());, it returns the last line. But then you call Readline method … Read more
int q1 (int x[], int &y, int z). You pass a(pointer to the beginning of the array) to q1, so x is a in function q1. In this sense, changing x is changing a. y++. Every iteration, y gets 1 more. So? 8 solved How does c++ think when accessing a function with arrays? [closed]
You get null values because you don’t create any objects of class Block in your array in RowOfBlocks. After creating the array with: this.blocks = new block[numofBlocks]; in the method body of generateBlocks() You have to iterate over it and insert actual blocks: for(int i=0 ; i < this.blocks.length ; i++) { this.blocks[i] = new … Read more