countYZ

Goto Problem

Given a string, count the number of words ending in 'y' or 'z' -- so the 'y' in "heavy" and the 'z' in "fez" count, but not the 'y' in "yellow" (not case sensitive). We'll say that a y or z is at the end of a word if there is not an alphabetic letter immediately following it. (Note: Character.isLetter(char) tests if a char is an alphabetic letter.) countYZ("fez day") → 2 countYZ("day fez") → 2 countYZ("day fyyyz") → 2

public int countYZ(String str)
{
str=str.toLowerCase();
int count=0;
for(int i=0;i<str.length()-1;i++)
{
if(str.charAt(i)=='y' || str.charAt(i)=='z')
{
if(!Character.isLetter(str.charAt(i+1)))
count++;
}
}
if(str.charAt(str.length()-1)=='y' || str.charAt(str.length()-1)=='z') count++;
return count;
}