hopeless

Question about the task

What sort of list is that?

Java Syntax, Level 7, Lesson 6

Resolved

No idea what I'm doing wrong. Does somebody have an idea? Thank you!

1. Create a list of strings.
2. Add 5 different strings to it.
3. Display its size on the screen.
4. Use a loop to display its contents, each value on a new line.

Note:
Add strings to the list only after the list is initialized.

Requirements:

The program should not read anything from the keyboard.
Declare an ArrayList<String> variable and immediately initialize it.
The program should add any 5 strings to the list.
The program should display the size of the list on the screen.
The program should display the contents of the list, each value on a new line.

package com.codegym.task.task07.task0707; import java.util.ArrayList; /* What sort of list is that? */ public class Solution { public static void main(String[] args) throws Exception { ArrayList<String> list = new ArrayList<String>(5); String a = "a"; String b = "b"; String c = "c"; String d = "d"; String e = "e"; list.set(0,a); list.set(1,b); list.set(2,c); list.set(3,d); list.set(4,e); System.out.println(list.size()); for (int i = 0; i < 5; i++){ System.out.println(list.get(i)); } //write your code here } }

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Hoang Khai

Level 8 , Chantilly, United States

17 July 2019, 19:43

try my code since it is more readable.

Hoang Khai

Level 8 , Chantilly, United States

17 July 2019, 19:42

public class Solution { public static void main(String[] args) throws Exception { ArrayList<String> list=new ArrayList<String>(); list.add("a"); list.add("b"); list.add("c"); list.add("d"); list.add("e"); int length=list.size(); System.out.println(length); for (int iter=0;iter<list.size();iter++){ System.out.println(list.get(iter)); } } }

Greggics

Level 20 , Frankfurt am Main, Germany

18 June 2019, 15:00

solution

list.set(int, String) is not used to add a new String to your list. Use list.add(String) instead.