44
55/*
66 * Count the number of Words
7- *
7+ * --------------------------
88 * Write the java program to count the number of
99 * words in the given string without string functions
1010 *
11+ * solution::
12+ * ----------
1113 * Count the number of white spaces " "
14+ *
15+ *
1216 * say Given String : java programming
1317 * no of words : 2
1418 * say Given String : code
1519 * no of words : 1
1620 *
1721 */
22+ 1823public class CountWords {
1924 public static void main (String [] args ) {
2025 Scanner scanner = new Scanner (System .in );
2126 System .out .println ("Enter any String : " );
2227 String str = scanner .nextLine ().trim ();
28+ if (str .length () == 0 ){
29+ System .out .println ("Number of wrods : 0" );
30+ System .exit (0 );
31+ }
2332 System .out .println ("Number of words : " +countWords (str ));
2433 scanner .close ();
2534 }
2635
2736 private static int countWords (String str ){
28- int count = 0 ;
29- boolean isWord = false ;
37+ int count = 1 ;
3038 for (int i =0 ;i <str .length ();i ++){
31- String ch = str .charAt (i )+"" ;
32- if (ch .equals (" " )){
39+ char ch = str .charAt (i );
40+ System .out .println (ch );
41+ if (ch == ' ' || ch == '\t' || ch == '\n' ){
3342 count ++;
34- isWord = false ;
35- //this while loop removes continuous
36- //white spaces
37- while ( ch . equals ( " " )){
38- ch = str . charAt ( i ++)+ "" ;
43+ ch = str . charAt ( i + 1 ) ;
44+ while ( ch == ' ' || ch == '\t' || ch == '\n' ){
45+ i ++;
46+ ch = str . charAt ( i + 1 );
47+ //this while loop removes continuous white spaces
3948 }
40- }else {
41- isWord = true ;
4249 }
4350 }
44- if (isWord == true )
45- count ++;
4651 return count ;
4752 }
4853}
@@ -51,12 +56,12 @@ private static int countWords(String str){
5156 Enter any String : java programming
5257 Number of words : 2
5358
54- Enter any String : 123123
59+ Enter any String : 123123
5560 Number of words : 2
5661
5762 Enter any String : code
5863 Number of words : 1
5964
60- Enter any String : I am a good coder
65+ Enter any String : I am a good coder
6166 Number of words : 5
6267*/
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