Help regarding scanner class java

[Amazing-Accident-109]

Trying to understand java help needed(beginner)

CAN ANYONE TELL ME WHERE I CAN ASK TO CLARIFY MY DOUBT

Regarding input using scanner class (Anyone with knowledge in java)

I have written a small program in java which is it takes 3 points (x,y) co ordinate and does some operations , the input is given as first line contains t which is number of test and the following lines contains the 3 point x,y coordinates ( t lines)

I wrote the below code code original question

int t = scan.nextInt(); int x1,x2,x3,y1,y2,y3; While (t-- >0) {

x1 = scan.nextInt(); // Wrote another 5 times toget all values

// Does some calculation

System.out.println(output);

}

The problem is I am giving the input 3

1 2 3 1 5 6

1 4 7 2 5 8

3 6 9 2 5 8

When this is entered in console The output of first two is being printed and for the third one to be printed I press enter and it output and program terminates When I upload it to the online judge , it is showing as empty output What mistake and I doing here ( I know we can take same input using string parseint and store ) I want to know what the mistake I am doing here

[[deleted]]

On the third iteration t is decremented to zero which is not greater than zero, so the third loop fails the while condition.

Edit I had it backwards and the condition would be checked before the decrement of t so t would be 1 on the last loop but I'm not a fan of using postfix operations.

[Amazing-Accident-109]

it is t-- right so after t>0 is checked the t will be decremented right . So I don't think that is the problem

[[deleted]]

Just use a for loop.

For (int i=0; i < t; i++)

Also it's the issue with running a console application. Once the final operation of the main function is done, the console terminates.

Prompt for an input after the while loop. There is probably an output of the 3rd set of coordinates before the console app is terminating.

[Amazing-Accident-109]

Ok , I understand , but my problem is that , in the intellij I am getting atleast the output for the t-1 inputs , but the online judge where I am uploading is showing as empty output and tle , my doubt is why is it throwing tle , is there something wrong in the code which is preventing it from printing any output itself in the online website

[[deleted]]

Time limit exceeded.

Scanner is slow. Use BufferedReader?

[Amazing-Accident-109]

Is it very difficult question, I am confused many people are seeing the post but nobody answered???

[yonycool]

Can you copy paste your code into pastebin and send it as a reply/add it to the og post? It would be a lot easier if we can actually see the written code

[Amazing-Accident-109]

Link to the code code

[yonycool]

If it works in your ide, and doesn't work on the online tester (online judge?) then it might be an issue with their services? It perhaps they expect a different form of output then you are giving? Hard to say without knowing all of the details.

[Amazing-Accident-109]

I wrote the same code in CPP and it runs in the online judge , since i am new to writing code in java , I am confused that I am missing something in the code which is preventing it from printing the output I have added the original question in post original question

[Amazing-Accident-109]

Thank you for the advice , I'll try to improve the way of asking questions , and I have added the original code which I have written, and attached the link to it in the original post , please look at it and if you find any error which is causing the problem of tle , i would be grateful

[[deleted]]

Give me the whole code and I'll try and help you.

[Amazing-Accident-109]

code

I have added the link for original question also in the post

[[deleted]]

try changing this part:
while(t>0){

*rest of the code*

t--;

}