Java: Making System.out.println() argument span multiple lines?

Question

I have the following message:

System.out.println("Players take turns marking a square. Only squares not already marked can be picked. Once a player has marked three squares in a row, he or she wins! If all squares are marked and no three squares are the same, a tied game is declared. Have Fun!");

This is a very long message and streaks across my screen, I want to break it up into segments so it does not break the design flow of my code. When I press enter though, Java no longer interprets the line as a string; Java believes it is a separate statement. How can I make Java interpret multiline print statements?

And also use StringBuilder to construct this message 'cause it would streak across the source viewer (IDE etc.) sceen as well. — Khanna111
– Khanna111, Commented Dec 10, 2014 at 19:08

DejaVuSansMono · Accepted Answer · 2014-12-10 19:09:50Z

19

Are you looking for something like this?

String line = "Information and stuff" + 
          "More information and stuff " + 
          "Even more information and stuff";

System.out.println(line);

answered Dec 10, 2014 at 19:09

DejaVuSansMono

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1 Comment

Martin Erlic Over a year ago

Is there some kind of generator online that will print out multi-line code samples as as String and print them with proper indenting, etc.? Update: It looks like IntelliJ will preserve the formatting with a simple copy-paste.

Zoe - Save the data dump · Accepted Answer · 2021-02-13 09:39:44Z

7

Following Java's coding conventions:

System.out.println("Players take turns marking a square. "
                   + "Only squares not already marked can be picked. "
                   + "Once a player has marked three squares in a row, "
                   + "he or she wins! If all squares are marked and no "
                   + "three squares are the same, a tied game is declared. "
                   + "Have Fun!");

Always break with the concatenation operator to start the next line for readability.

https://www.oracle.com/technetwork/java/javase/documentation/codeconventions-136091.html#248

edited Feb 13, 2021 at 9:39

Zoe - Save the data dump

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answered Apr 21, 2019 at 16:12

bradylange

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Comments

Vlad · Accepted Answer · 2018-05-11 21:38:02Z

2

You can type: System.out.println("This is the first line \n" + "This is the second line")

answered May 11, 2018 at 21:38

Vlad

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Comments

Memegamer138 · Accepted Answer · 2021-03-23 18:12:18Z

1


System.out.println("Players take turns marking a square."
+ "\nOnly squares not already marked can be picked."
+ "\nOnce a player has marked three squares in a row, he or she wins!"
+ "\nIf all squares are marked and no three squares are the same, a tied game is declared."
+ "\nHave Fun!");

Done.

answered Mar 23, 2021 at 18:12

Memegamer138

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Comments

RAEC · Accepted Answer · 2014-12-10 19:07:30Z

0

add '\n' where ever you want a new line.

answered Dec 10, 2014 at 19:07

RAEC

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1 Comment

RAEC Over a year ago

geez. i apologize. read it in a rush and replied quickly. my bad.

Shtefan · Accepted Answer · 2024-07-07 09:17:12Z

0

Just use triple quote, and you can have as may line as you want:

System.out.println("""
            line 1
            line 2
            line 3
            """);

answered Jul 7, 2024 at 9:17

Shtefan

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