Java: Count all words in a string
Java Method: Exercise-5 with Solution
Write a Java method to count all the 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:
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