Need help!

Thanks for your help.

Thanks for your help! Change for i< list.size()-1; But no output data at all. Verify said: task no meet .

Thanks a lot for your help.

I changed the code , use : I< list.size()-1 But no output, What's wrong? Thanks a lot!

I made some changes in your code trying to keep close to what you intended, I hope you will be able to pass the task with. For the first loop I think you've already corrected it: for ( int i =0; i<10; i++) { String a= r.readLine(); list.add(a); } In the second loop: for (int i=0; i<list.size()-1; i++){ b=list.get(i).length(); c=list.get(i+1).length(); if(b>c){ System.out.println(i+1); break; } } This way when your condition (b>c) is true you display the list's index where the error occurs and exit the loop and then end the program. With your previous code: if ( b>c) break; System.out.println(list.indexOf(list.get(i+1))); you displayed all the indexes that did not fill your condition until you fill the condition and then stop the program without displaying the index required by the task.

Thank you for your patient , your help! I changed it : if (b>c) { System.out.println(I+1); Breat; } But no output yet . The code analysis is good file. I don't know....

You're welcome, let's keep trying! Can you put all your new code with the modifications in a new message so i can try it directly in my IDE?

Thanks your help. I put my new code with the modifications. Wish it work ,but no?

Try to paste this code in your IDE, it works fine with my own tests, the output corresponds to the expected answer. Unfortunately I can't try it on the website: package solution; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; public class Solution { public static void main(String[] args) throws IOException { ArrayList<String> list = new ArrayList<String>(10); BufferedReader r = new BufferedReader ( new InputStreamReader(System.in)); for ( int i =0; i<10; i++) { String a= r.readLine(); list.add(a); } int b; int c; for (int i=0; i<list.size()-1; i++){ b=list.get(i).length(); c=list.get(i+1).length(); if(b>c){ System.out.println(i+1); break; } } } } with these inputs : grandfather grandmother father mother son daughter cat dog program car The code displays 2, father is the third element at the second index in the list

I find the difference ! The lines 16 of my code for ( int I =0; i< list.size(); i ++) Your code is " i <10;" I change it again, then it work! Output 2 ! But I don't know why? 🤢

There are still 2 problems in your code: - ArrayList<String> list = new ArrayList<String>(10) : the 10 here doesn't indicate the list's size but just indicates the space you want to allocate before you use your list so that you can save time in some specific cases. Then at this point list.size() = 0 => you never enter inside the loop - you forgot curly braces with your if at line 24 and you have 2 statements : if ( b>c) System.out.println(i+1); break; You always execute break in all cases. it should be: if(b>c){ System.out.println(i+1); break; } Here you only break when the condition b>c is true.

Ok. I got it. Thank you ! Your are very patient .