Splitting on white space

Question

I have a scenario like i need to check a string if it has only one word. I split on white space and its fine, now I need to check if a single word has a space attached to it and I'm unable to handle it.

I tried the below and Its not working

    String temp1[] = temp.split("\\s+");

System.out.println("Size   "+temp1.length);

if(temp1.length==1 && !temp1[0].contains(" "));
{
    System.out.println("Single keyword");
}

I need to avoid the single word along with a space.

Answer 1

first remove starting & ending white spaces using trim() method & then split it

Ex:~

if your i/p is String s= "Hello " then s.trim() gives "Hello".

read documentation once you will get an idea.

Answer 2

You are checking if a string has one and only word or not.So basically if a string has atleast one space then that string is not considered as single word(simple grammar).So you need to check if that particular string has any spaces or not.

String t1="hhh fff";
        if(t1.contains(" "))
        {
            System.out.println("yes");
        }

above will also check if a string is prefixed or post fixed with space