How to meet last condition

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Hi, I meet all conditions except the last one since I am not sure how to do it. I tried to do something like this after the if - statement but it did not work as I hoped. Therefore I deleted it from the code below. So, still I am stuck with how to meet the last condition.

else if (strings.get(i).length() == longest_String.length()) {
                System.out.println(strings.get(i));
                System.out.println(longest_String);
            }

Thanks.

1. Initialize the list of strings.
2. Read 5 strings from the keyboard and add them to this list.
3. Using a loop, find the longest string in the list.
4. Display the string. If there is more than one, display each on a new line.

Requirements:

In the main method, initialize the Solution class's existing strings field to a new ArrayList<>.
The program should read 5 strings from the keyboard and write them to the list of strings.
The program should display the longest string.
If several strings qualify as the longest, then you need to display each of them on a new line.

package com.codegym.task.task07.task0708; import java.io.BufferedReader; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; /* Longest string */ public class Solution { private static List<String> strings = new ArrayList<String>(); public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String longest_String = ""; for (int i = 0; i <5 ; i++) { String s = reader.readLine(); strings.add(s); } for (int i = 0; i < strings.size() ; i++) { strings.get(i); if (strings.get(i).length() > longest_String.length()) { longest_String = strings.get(i); } } System.out.println(longest_String); } }

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Fa Yu

Level 16 , Tashkent, Uzbekistan

11 June 2019, 06:08

First identify the longest length int. After that in loop just make if statement to copmpare each string's length with that longest length and if true then print out that string.

Fa Yu

Level 16 , Tashkent, Uzbekistan

11 June 2019, 06:13

or in your code just make loop for printing out with if statement: if (strings.get(i).length == longest_string.length) sout strings.get(i);

ProgrammerNewbie

Level 14 , United States

12 June 2019, 17:49

I tried exactly that but it does not work as it should. I added the code after the end of my if-statement.

Fa Yu

Level 16 , Tashkent, Uzbekistan

13 June 2019, 05:50

I didn't see in your code above loop with if statement for Sysytem.out.println

Fa Yu

Level 16 , Tashkent, Uzbekistan

13 June 2019, 05:56

if you wish you can check my code below and find out solution for yours:

package com.codegym.task.task07.task0708;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

/*
Longest string

*/

public class Solution {
    private static List<String> strings;

    public static void main(String[] args) throws Exception {
        strings = new ArrayList<>();
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        for (int i = 0; i < 5; i++) {
            String s = reader.readLine();
            strings.add(i, s);
        }

        int max = strings.get(0).length();
        for (int i = 1; i < strings.size(); i++) {
            if (strings.get(i).length() > max) {
                max = strings.get(i).length();
            }
        }


        for (int i = 0; i < strings.size(); i++) {
            if (strings.get(i).length() == max) {
                System.out.println(strings.get(i));
            }
        }//write your code here
    }
}

ProgrammerNewbie

Level 14 , United States

13 June 2019, 18:33

I understand almost everything. However, what still gives me trouble is the fact that with the first if-statement in line 27, apparently we do not need a print statement. Why? Why does it work fine when it does not know that it should print the longest string? Maybe I just overlooked something.

Fa Yu

Level 16 , Tashkent, Uzbekistan

14 June 2019, 05:26

because in first if statement we don't know the longest length until the end of the for loop

ProgrammerNewbie

Level 14 , United States

14 June 2019, 17:55

Thanks! Now it makes sense! I higly appreciate your patience and help!