f(x)=2x+2. Put in 0, 1/2, 1, 3/2, 2... and you will get integer values. That is for the domain. The numbers you get when you put that in are the range integral values.
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: "); }
integer = input("Please input an integer greater than 0: ") print(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.
A relation is a mapping or pairing of input values with output values.
The method Scanner.nextInt() returns an integer obtained as user input.
010101
The Input or X values are called the Domain.
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.
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! }
A collection of all input values is called 'Data'.
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.
This code block will accept input from standard input (console). It will first read in integers until you enter an empty string (just hit enter). Then it will do the same with floats and then with doubles. If you give it bad input, then it will tell you about it and just continue reading in numbers. Note that I didn't touch the command line here, but the process to parse an argument sent in from the command line is the same as below. Just use the try-catch block with args[n] (in place of currentLine) to parse the nth argument. // create an BufferedReader from the standard input stream BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); String currentLine = ""; // read integers System.out.print("Input an integer: "); while (!(currentLine = in.readLine()).equals("")) { int input = 0; try { input = Integer.parseInt(currentLine); } catch (final NumberFormatException ex) { System.out.println("That was not an integer."); } System.out.println("\tInteger read: " + input); System.out.print("Input an integer: "); } // read floats System.out.print("Input an float: "); while (!(currentLine = in.readLine()).equals("")) { float input = 0.0f; try { input = Float.parseFloat(currentLine); } catch (final NumberFormatException ex) { System.out.println("That was not an float."); } System.out.println("\tFloat read: " + input); System.out.print("Input an float: "); } // read doubles System.out.print("Input an double: "); while (!(currentLine = in.readLine()).equals("")) { double input = 0.0; try { input = Double.parseDouble(currentLine); } catch (final NumberFormatException ex) { System.out.println("That was not an double."); } System.out.println("\tDouble read: " + input); System.out.print("Input an double: "); }