147 lines
4.5 KiB
Java
147 lines
4.5 KiB
Java
import org.junit.Test;
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import java.util.Scanner;
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/**
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* Generic test class for implementing and testing reading in arrays of integers
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* _ _ _ _
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* __ ___ __(_) |_| |_ ___ _ __ | |__ _ _
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* \ \ /\ / / '__| | __| __/ _ \ '_ \ | '_ \| | | |
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* \ V V /| | | | |_| || __/ | | | | |_) | |_| |
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* \_/\_/ |_| |_|\__|\__\___|_| |_| |_.__/ \__, |
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* |___/
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* ____ __ __ _
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* / ___|_ _____ _ __ \ \ / /__ __ _ ___| |
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* \___ \ \ / / _ \ '_ \ \ \ / / _ \ / _` |/ _ \ |
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* ___) \ V / __/ | | | \ V / (_) | (_| | __/ |
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* |____/ \_/ \___|_| |_| \_/ \___/ \__, |\___|_|
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* |___/
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* Licensed under the GPLv2 License, Version 2.0 (the "License");
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* Copyright (c) Sven Vogel
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*/
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public class Aufgabe6 {
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/**
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* Read 10 integers from System.in and print them to the screen when done
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* This method continues to request more input even when the input is not an integer.
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*/
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private static void taskA() {
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try(var scanner = new Scanner(System.in)) {
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var array = new double[10];
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var counter = 0;
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while (true) {
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try {
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if (counter > 9) {
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for (var value : array) {
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System.out.println(value);
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}
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break;
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}
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System.out.println("Enter a number: ");
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array[counter++] = scanner.nextDouble();
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} catch (Exception e) {
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System.err.println("You did not enter a number");
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}
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}
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}
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}
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/**
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* Reads in an integer from System.in and creates an array of integers with the given size
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* Read 10 integers from System.in and print them to the screen when done
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* This method continues to request more input even when the input is not an integer.
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*/
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private static void taskB() {
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try(var scanner = new Scanner(System.in)) {
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double[] array = null;
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var counter = 0;
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// read something in until we allocated an array
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while (array == null) {
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try {
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array = new double[scanner.nextInt()];
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} catch (Exception e) {
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System.err.println("You did not enter a valid number");
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}
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}
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// fill the array
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while (true) {
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try {
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if (counter >= array.length - 1) {
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for (var value : array) {
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System.out.println(value);
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}
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break;
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}
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System.out.println("Enter a number: ");
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array[counter++] = scanner.nextDouble();
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} catch (Exception e) {
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System.err.println("You did not enter a number");
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}
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}
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}
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}
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/**
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* Read 5 integers from System.in and print the median of them
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* This method continues to request more input even when the input is not an integer.
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*/
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private static void taskC() {
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try(var scanner = new Scanner(System.in)) {
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var array = new double[5];
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var counter = 0;
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while (true) {
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try {
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if (counter > 5) {
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var sum = 0;
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for (var value : array) {
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sum += value;
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}
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System.out.println("median: " + (sum / 5.0));
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break;
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}
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System.out.println("Enter a number: ");
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array[counter++] = scanner.nextDouble();
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} catch (Exception e) {
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System.err.println("You did not enter a number");
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}
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}
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}
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}
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/**
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* Prints the content of two arrays as pairs to the screen
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*/
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private static void taskD() {
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int x []= {9,8,7,6,5,4};
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int y []= {1,2,3,4,5,6};
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for (int i = 0; i < x.length; i++) {
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System.out.format("(%d, %d) ", x[i], y[i]);
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}
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System.out.println();
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}
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/**
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* Test various functions in this class
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*/
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@Test
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public void test() {
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// taskA();
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// taskB();
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// taskC();
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// taskD();
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}
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}
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