Java Method Exercises: Count all words in a string
Java Method: Exercise-5 with Solution
Write a Java method to count all words in a string.
Test Data:
Input the string: The quick brown fox jumps over the lazy
dog.
Pictorial Presentation:
Sample Solution:
Java Code:
import java.util.Scanner;
public class Exercise5 {
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.print("Input the string: ");
String str = in.nextLine();
System.out.print("Number of words in the string: " + count_Words(str)+"\n");
}
public static int count_Words(String str)
{
int count = 0;
if (!(" ".equals(str.substring(0, 1))) || !(" ".equals(str.substring(str.length() - 1))))
{
for (int i = 0; i < str.length(); i++)
{
if (str.charAt(i) == ' ')
{
count++;
}
}
count = count + 1;
}
return count; // returns 0 if string starts or ends with space " ".
}
}
Sample Output:
Input the string: The quick brown fox jumps over the lazy dog Number of words in the string: 9
Flowchart:
Java Code Editor:
Contribute your code and comments through Disqus.
Previous: Write a Java method to count all vowels in a string.
Next: Write a Java method to compute the sum of the digits in an integer.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
- New Content published on w3resource:
- HTML-CSS Practical: Exercises, Practice, Solution
- Java Regular Expression: Exercises, Practice, Solution
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework
- Angular - JavaScript Framework
- Vue - JavaScript Framework
- Jest - JavaScript Testing Framework