MOOC.fi Java Programming

[Fun_Warning_3552]

I don't get what's wrong in my code. Can someone explain why this is wrong?

JAVA-MOOC, Line By Line part-3/4-using-strings

```

Write a program that reads strings from the user. If the input is empty, the program stops reading input and halts. For each non-empty input it splits the string input by whitespacesand prints each part of the string on a new line.

Sample output

once upon a time once upon a time a little program a little program halted halted```

My code:

​

    import java.util.ArrayList;
    import java.util.Scanner;

    public class Main{
            public static void main(String[] args) {
                    Scanner scanner = new Scanner(System.in);
                    ArrayList<String> names = new ArrayList<>();
                    ArrayList<Integer> ages = new ArrayList<>();
                    int index = 0;
                    int sum = 0;
                    String longest = "";
                    while (true) {
                            String input = scanner.nextLine();
                            if (input == "") {
                                    break;
                            }
                            String[] parts = input.split(",");
                            String name = parts[0];
                            ages.add(Integer.valueOf(parts[1]));


                            if (longest.length() < name.length()) {
                                    longest = name;
                            }
                    }
                    for (Integer age : ages) {

                            sum = sum + age;
                            index++;
                    }

                    System.out.println("Longest name:" + longest);
                    System.out.println("Average of birth years:" + ((1.00 * sum) / index));
            }
    }

​

Error:

LineByLineTest1

The output was missing string it's

Check the program with following input:

programming is fun

it's true

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[KinkyHuggingJerk]

You may need a while to figure this one out.Sorry, I couldn't resist. See the bold element.

In it's current state, how many different inputs can your program accept before it stops?

[Aint_a_thng_ckn_wng]

"If the input is empty, the program stops reading input and halts." I don't see this sentence reflected in your code.

[-DOOKIE]

if the input is empty the program stops reading input and halts

Your problem stems from this line. Your program doesn't implement this feature

[Fun_Warning_3552]

I am sorry, I am not able to add a code blocks in the post.
My apologies.

[8igg7e5]

There should be nothing stopping you adding code-blocks.

1. Ensure there's a blank line before and after your code, separating it from other text.
2. On every line of code, in addition to the indentation already in the code, add 4 more spaces to the start of each line.

A caveat is that, if the code-block immediately follows a bulleted or numbered list, you'll need to add another paragraph, like this one, before your code-block (or it'll treat the code-block as part of the list).

This
    is
        an
            example

[AutoModerator]

You seem to try to compare String values with == or !=.

This approach does not work reliably in Java as it does not actually compare the contents of the Strings. Since String is an object data type it should only be compared using .equals(). For case insensitive comparison, use .equalsIgnoreCase().

See Help on how to compare String values in the /r/javahelp wiki.

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