HackerRank Program -Strings #1

 There is a sequence of words in CamelCase as a string of letters, , having the following properties:

• It is a concatenation of one or more words consisting of English letters.
• All letters in the first word are lowercase.
• For each of the subsequent words, the first letter is uppercase and rest of the letters are lowercase.

Given , determine the number of words in .

Example

There are  words in the string: 'one', 'Two', 'Three'.

Function Description

Complete the camelcase function in the editor below.

camelcase has the following parameter(s):

• string s: the string to analyze

Returns

• int: the number of words in 

Input Format

A single line containing string .

Constraints

Sample Input

saveChangesInTheEditor

Sample Output

5

Explanation

String  contains five words:

1. save
2. Changes
3. In
4. The
5. Editor

// Java code to find the count of words 

// in a CamelCase sequence 

class solution 

{ 

// Function to find the count of words 

// in a CamelCase sequence 

static int countWords(String str) 

{ 

int count = 1; 

for (int i = 1; i < str.length() - 1; i++) { 

if (str.charAt(i)>=65&&str.charAt(i)<=90) 

count++; 

} 

return count; 

} 

// Driver code 

public static void main(String args[]) 

{ 

String str = "saveChangesInTheEditor"; 

System.out.print( countWords(str)); 

} 

} 

===================================================================================

// Java program to convert given sentence 

/// to camel case. 

class GFG 

{ 

// Function to remove spaces and convert 

// into camel case 

static String convert(String s) 

{ 

// to count spaces 

int cnt= 0; 

int n = s.length(); 

char ch[] = s.toCharArray(); 

int res_ind = 0; 

for (int i = 0; i < n; i++) 

{ 

// check for spaces in the sentence 

if (ch[i] == ' ') 

{ 

cnt++; 

// conversion into upper case 

ch[i + 1] = Character.toUpperCase(ch[i + 1]); 

continue; 

} 

// If not space, copy character 

else

ch[res_ind++] = ch[i]; 

} 

// new string will be resuced by the 

// size of spaces in the original string 

return String.valueOf(ch, 0, n - cnt); 

} 

// Driver code 

public static void main(String args[]) 

{ 

String str = "save  Changes In The Editor"; 

System.out.println(convert(str)); 

} 

}