Question

write a program in Java to accept a string and count how many words are there

Answer 1

Heya user ,
Here is your answer !!

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import java.util.*;
public class Words
{
public static void main ( String args [] )
{
Scanner in = new Scanner ( System.in ) ;
System.out.print ( " Enter a sentence : " ) ;
String S = in.nextLine() ;
S = S.trim();
int k = 1 ;
for ( int i = 0 ; i < S.length() ; i++ )
{
if ( S.charAt( i ) = ' ' )
k++ ;
}
System.out.println ( " No. of words : " + k ) ;
}
}

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EXPLANATION :

☆ S is the actual string .

☆ Now , we trim the string so that all the extra spaces at the beginning and at the end are removed .

☆ The ' for ' loop count the number of blank spaces in the string .

☆ The no. of blank spaces is stored in the variable k .

☆ NOTE :
THE NO. OF WORDS IN A STRING IS ALWAYS = ( NO. OF SPACES + 1 ) .

☆ So , we have initialised the value of k as 1 .

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** INPUT :
I love computer

** OUTPUT :
3

Hope it helps you !!