Why my code is not valid?

Question about the task

StringHelper class

Java Syntax, Level 6, Lesson 8

Under discussion

In Idea it works. Thanks for answer.

Make the StringHelper class, which will have 2 static methods:
String multiply(String s, int count) - returns a string that has been repeated count times.
String multiply(String s) - returns a string that has been repeated 5 times.

For example:
Amigo -> AmigoAmigoAmigoAmigoAmigo

Requirements:

The program must not read data from the keyboard.
The StringHelper class's methods must return a string.
The StringHelper class's methods must be static.
The StringHelper class's methods must be public.
The multiply(String s, int count) method must return a string that has been repeated count times.
The multiply(String s) method must return a string that has been repeated 5 times.

package com.codegym.task.task06.task0611; /* StringHelper class */ public class StringHelper { public static String multiply(String s) { return multiply(s, 5); } public static String multiply(String s, int count) { String result = ""; //write your code here for (int i = 0; i < count; i++) { System.out.print(s); } return result; } public static void main(String[] args) { } }

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Faisal Ahmed

Level 13 , Bangalore, India

3 June 2020, 14:46

public class StringHelper { public static String multiply(String s) { String result = ""; for(int i = 0;i < 5;i++) result += s; return result; } public static String multiply(String s, int count) { String result = ""; for(int i = 0;i < count;i++) result += s; return result; } public static void main(String[] args) { System.out.println(multiply("amigo")); System.out.println(multiply("amigo",3)); } }

Guadalupe Gagnon

Level 37 , Tampa, United States

15 March 2019, 20:33

At line 19 what are you returning? You are supposed to return the passed in string 's' 'count' number of times. You are returning only what you set the value of 'result' to initially since you never changed it, which is "" according to line 14. All you need to do is change line 17 from a line that displays, to a line that actually changes the value of 'result' by adding 's' to it. You already set the loop up properly to run 'count' number of times.

Alexey

Level 7 , Chernihiv, Ukraine

15 March 2019, 22:20

Thanks Guadalupe, but I can't understand what i must to change in line 17(( I change line 17

result += s;

and everything is fine with validation, but method didnt print result.

Khurram

Level 16 , Lahore, Pakistan

16 March 2019, 04:23

it doesnt say that the method should print the result. It should only return the string. you can print the result in the main function by using the function call as a parameter for the System.out.print method

Alexey

Level 7 , Chernihiv, Ukraine

16 March 2019, 08:53

thanks guys. I did it like i wanted. all data is printed.