A relation is a mapping or pairing of input values with output values.
The Input or X values are called the Domain.
let x = any integer then (2x + 1) = any odd integer
Domain describes all possible input values.
The x-values in a set of points
// create an BufferedReader from the standard input stream BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String currentLine = ""; int total = 0; // read integers System.out.print("Input an integer: "); while (!(currentLine = in.readLine()).equals("")) { int input = 0; try { input = Integer.valueOf(currentLine); total += input; } catch (final NumberFormatException ex) { System.out.println("That was not an integer."); } System.out.print("Input an integer: "); }
Create an array with 50 elements and input the integers one a time, filling the array. Use an insertion sort on the array for each input except the first. Alternatively, input the values first and then use insertion sort.
integer = input("Please input an integer greater than 0: ") print(integer)
A relation is a mapping or pairing of input values with output values.
010101
The method Scanner.nextInt() returns an integer obtained as user input.
Yes. You can store any number of values input at runtime using a variable-length array or any other sequence container such as a list.
The Input or X values are called the Domain.
A collection of all input values is called 'Data'.
std::string input = ""; std::getline (std::cin, input); // get input from stdin std::stringstream ss (input); // place input in a string stream integer num = 0; if (ss >> num) // extract integer from string stream { // Success! } else { // Fail! }
The simplest solution is to use a std::set<size_t> sequence container to store the values as they are input. Duplicate entries are ignored automatically, thus when all 5 numbers have been input, the set will have at least 1 number but no more than 5. Thus the size of the set represents the count of distinct values that were input.
public static final void readIntList() { // set up our input buffer BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String currentLine; // I'll use a linked list for this; // replace it with whatever best suits your purpose List<Integer> intList = new LinkedList<Integer>(); // loop until we read -999 while (!(currentLine = in.readLine()).equals("-999")) { try { // convert from string to int int currentNumber = Integer.parseInt(currentLine); // add to the list intList.add(currentNumber); } catch (final NumberFormatException ex) { // we go here if the user didn't type in an integer } } // display our lovely list System.out.println(intList); }