How to print out the contents of the list on a single line In this printNumbers method i need it to print out the integers in the numbers list. And im not sure what im doing wrong. public class WrapperExample { private Scanner scanner; private ArrayList numbers; /** * Constructor for objects of class WrapperExample. */ public WrapperExample() scanner = new Scanner(System.in); numbers = new ArrayList<>(); } /** * Read integer from standard input (System.in) * and store them in the list. The end of the * input is indicated by a negative integer. * The negative integer must not be stored in the list. */ public void readNumbers() { int i = scanner.nextInt(); // Get rid of any previous numbers. numbers.clear(); // Read a fresh set of integers ... while (i >= 0){ numbers.add(i); } i = scanner.nextInt(); /** * Print out the integers in the numbers list. * Print the numbers on a single line, with a single space * between each. */ public void printNumbers() { // Print out the numbers. // Terminate the line. for(Integer interger: numbers){ System.out.println(scanner.nextInt()); }

How to print out the contents of the list on a single line In this printNumbers method i need it to print out the integers in the numbers list. And im not sure what im doing wrong. public class WrapperExample { private Scanner scanner; private ArrayList numbers; /** * Constructor for objects of class WrapperExample. */ public WrapperExample() scanner = new Scanner(System.in); numbers = new ArrayList<>(); } /** * Read integer from standard input (System.in) * and store them in the list. The end of the * input is indicated by a negative integer. * The negative integer must not be stored in the list. */ public void readNumbers() { int i = scanner.nextInt(); // Get rid of any previous numbers. numbers.clear(); // Read a fresh set of integers ... while (i >= 0){ numbers.add(i); } i = scanner.nextInt(); /** * Print out the integers in the numbers list. * Print the numbers on a single line, with a single space * between each. */ public void printNumbers() { // Print out the numbers. // Terminate the line. for(Integer interger: numbers){ System.out.println(scanner.nextInt()); }

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 18RQ

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Write the following method that returns the sum of all numbersin an ArrayList:public static double sum(ArrayList<Double> list)Write a test program that prompts the user to enter five numbers, stores them inan array list, and displays their sum.
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Write the definitions of the member functions of the classes arrayListType and unorderedArrayListType that are not given in this chapter. The specific methods that need to be implemented are listed below. Implement the following methods in arrayListType.h: isEmpty isFull listSize maxListSize clearList Copy constructor Implement the following method in unorderedArrayListType.h insertAt Also, write a program (in main.cpp) to test your function.
Project Description: In this project you implement an ArrayStack ADT and use the stack for implementing the following methods: a) Reverse an array of Words: Accept an array of words as input parameter and return an array of words in reverse order. Use the method signature: public static String[] reverse Words (String[] wordList) Example Input: Bird Cat Dog Elephant Output: Elephant Dog Cat Bird
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