int Array Stream System.out.print method adds % sign at the end while printing Java8 [duplicate]

Question

Facing issue while using trying to print primitive type int array elements onto the console using Stream API forEach method using System.out.print method as an extra % sign is being added to the console output.

Please find below my main method -

 public static void main(String[] args) {       
        int[] A = {1, 2, 3, 4, 5, 6, 7, 8};

        Arrays.stream(A).forEach(s -> System.out.print(s));
    }

Output - 12345678%

Expected Output - 12345678

I was wondering why an extra % sign is being added at the end of printing the array. I am using MacOS. Tried both with VSCode and terminal javac and java commands, both giving same issue.

Note: System.out.println works fine without adding any % sign.

Related Post(Without a satisfactory answer) : Remove percent sign after System.out.print();

UPDATE: It turned out to be a zsh issue. I was able to follow the StackExchange post answer and add PROMPT_EOL_MARK='' in my ~/.zshrc file to remove the % sign.

Answer 1

This is how zsh behaves when there is no new line character at the end of your output. You are using print, which unlike println, does not print a trailing new line. See also this post on Unix & Linux Stack Exchange.

You will see the same behaviour with echo -n (echo, but without a trailing new line):

sweeper@sweepers-MacBook-Pro ~ % echo -n Foo
Foo% 
sweeper@sweepers-MacBook-Pro ~ %

If you use bash, there is no %, but notice that the lack of a new line makes the next prompt stay on the same line as the output.

bash-3.2$ echo -n Foo
Foobash-3.2$ 

You can just put another System.out.println() after your code and there will not be a % on zsh.