Why do it prints this?

Question

1.00/5 (2 votes)

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My code:

Java

String o = "56";
String hello = "Rudra";
System.out.println(o.concat(hello));

What I have tried:

Why it says:

56Rudra but not 56 Rudra

Posted 21-Jul-23 1:16am

Rudra 2023

Updated 21-Jul-23 2:29am

Graeme_Grant

v2

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4 solutions

Solution 3

Instead of posting the same basic question again, your time would be better spent actually learning the language. Go to Java Tutorials Learning Paths[^], where everything is clearly explained.

Posted 21-Jul-23 1:40am

Richard MacCutchan

Solution 2

Hint: read the documentation String (Java Platform SE 8 )[^].

Posted 21-Jul-23 1:28am

CPallini

Comments

Graeme_Grant 21-Jul-23 7:34am

Class is out

Solution 4

To add to the other's answers, Java includes a join method that can concatenate any number of strings with a separator string between each:

Java

System.out.println(String.join(" ", "Hello", "World"));

Result

Hello World

Posted 21-Jul-23 2:29am

OriginalGriff

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CHill60 · Accepted Answer · 2023-07-21T01:23:00

Solution 1

Because you are concatenating "56" o with "Rudra" hello - you have not included any spaces

In fact - look at the solution to your earlier question How to add space between this output?[^]

Posted 21-Jul-23 1:23am

CHill60

Updated 21-Jul-23 1:24am

v2

Comments

Rudra 2023 21-Jul-23 7:28am

I have used the concat method to add spaces only.

Richard Deeming 21-Jul-23 7:38am

The concat method concatenates two strings. It does NOT add any space or extra characters between the two strings.