CODEWITHSUNDEEP
javastring
Digitalwolf
Digitalwolf

Reputation: 493

Easiest way to get every word except the last word from a string

What is the easiest way to get every word in a string other than the last word in a string?

Up until now I have been using the following code to get the last word:

String listOfWords = "This is a sentence";
String[] b = listOfWords.split("\\s+");
String lastWord = b[b.length - 1];

And then getting the rest of the the string by using the remove method to remove the last word from the string.

I don't want to have to use the remove method. Is there a way similar to the above set of code to get the string of words without the last word and last space?

Upvotes: 8

Views: 33430

Answers (6)

someone
someone

Reputation: 6572

I added one line to your code. Nothing was removed here.

String listOfWords = "This is a sentence";
String[] b = listOfWords.split("\\s+");
String lastWord = b[b.length - 1];
String rest = listOfWords.substring(0, listOfWords.indexOf(lastWord)).trim(); // Added
System.out.println(rest);

Upvotes: 3

labanish
labanish

Reputation: 31

public class StringArray {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {

        String sentence = "this is a sentence";

        int index = sentence.lastIndexOf(" ");

        System.out.println(sentence.substring(0, index));

    }
}

Upvotes: 2

PermGenError
PermGenError

Reputation: 46408

You could get the lastIndexOf the white space and use a substring like below:

String listOfWords = "This is a sentence";
int index = listOfWords.lastIndexOf(" ");
System.out.println(listOfWords.substring(0, index));
System.out.println(listOfWords.substring(index+1));

Output:

        This is a
        sentence

Upvotes: 8

sp00m
sp00m

Reputation: 48817

This will suit your needs:

.split("\\s+[^\\s]+$|\\s+")

For example:

"This is a sentence".split("\\s+[^\\s]+$|\\s+");

Returns:

[This, is, a]

Upvotes: 2

Kevin Bowersox
Kevin Bowersox

Reputation: 94469

Try using the method String.lastIndexOf in combination with String.substring.

String listOfWords = "This is a sentence";
String allButLast = listOfWords.substring(0, listOfWords.lastIndexOf(" "));

Upvotes: 6

jlordo
jlordo

Reputation: 37813

Like this:

    String test = "This is a test";
    String firstWords = test.substring(0, test.lastIndexOf(" "));
    String lastWord = test.substring(test.lastIndexOf(" ") + 1);

Upvotes: 24

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