Trying to split a user input string by its spaces

Question

Trying to split out a string and output the penultimate word inputted by the user, but the .split() only seems to be outputting a single string into the array so its not working?

import java.util.*;

public class Random_Exercises_no60 {

    public static void main(String[] args) {  
        Scanner sc = new Scanner (System.in);
        System.out.println("Please enter a sentence.");
        String sentence = sc.next();
        String[] words = sentence.split("\\s+");
        System.out.println(words.length); // Just to check the array
        System.out.println("Penultimate word " + words[words.length - 2]);
    }
}

Ousmane D. · Accepted Answer · 2018-11-27 12:59:18Z

4

Problem is not with the split method, rather you should use nextLine instead of next:

String sentence = sc.nextLine();

answered Nov 27, 2018 at 12:59

Ousmane D.

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1 Comment

Azeez Over a year ago

But the problem with nextLine is If we want to take two inputs its skips the first input and takes the second input. That's what I am facing now if I am using next so split not working and if I use nextLine so it's not taking first input

Tim Biegeleisen · Accepted Answer · 2018-11-27 13:02:06Z

0

The answer by @Aomine should resolve your problem. If you really wanted to use Scanner#next() directly, then you could also try setting the scanner's delimiter to be newline:

Scanner sc = new Scanner (System.in);
sc.useDelimiter(Pattern.compile("\\r?\\n"));

Then, calling Scanner#next() should default to returning the next full line.

answered Nov 27, 2018 at 13:02

Tim Biegeleisen

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Comments

Sai Jayant · Accepted Answer · 2018-11-27 13:11:19Z

0

You can use the whitespace regex

str = "Hello spilt me";
String[] splited = str.split("\\s+");

answered Nov 27, 2018 at 13:11

Sai Jayant

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Comments

kiran · Accepted Answer · 2018-11-27 14:13:02Z

0

The split is working correctly. Reading of information from console is correct. Below changes should work.

public class Random_Exercises_no60 {

public static void main(String[] args) {  
    Scanner sc = new Scanner (System.in);
    System.out.println("Please enter a sentence.");
    String sentence = sc.nextLine();
    String[] words = sentence.split("\\s+");

    System.out.println(words.length); // Just to check the array
    for (String currentWord : words ) {
    System.out.println("The current word is" + currentWord);
}
}}

answered Nov 27, 2018 at 14:13

kiran

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