Java Programming

Q).. find the three consecutive characters in a string. if the string consists any three

   consecutive characters return 1 else return -1

   like AAAxyzaaa will return true.

1.  
2. package Set1;
3. public class ClassSet36 {
4. public static void main(String[] args) {
5.       String s1="aaaaxyzAAA";
6.       boolean b=consecutiveCharactersCheck(s1);
7.       if(b==true)
8.             System.out.println("presence of consecutive characters");
9.       else
10.             System.out.println("absence of consecutive characters");
11.       }
12.  
13. public static boolean consecutiveCharactersCheck(String s1) {
14.       boolean b=false;
15.       int c=0;
16.       for(int i=0;i<s1.length()-1;i++)
17.             if((s1.charAt(i+1)-s1.charAt(i))==1)
18.                         c++;
19.       if(c>=2)
20.             b=true;
21.       return b;
22. }
23. }