please help with counting specific word in a sentence

[noobinoo]

how do i count a specific word in a sentence. example:
"i have a dog"
the word "dog" occurred 1 time

here is the code i that i develop so far

public class count{
 public static void main(String[] args){
    String sentence = "this is a book this is a cat this is a dog";
     char []abc= new char[26];
      int []times=new int [26];
       for(int i=0; i<abc.length;i++)
         abc[i]=(char) (i+97);
          for(int i=0; i<sentence.length();i++){
           char c=sentence.charAt(i);
           for (int j=0;j<abc.length;j++)
            if (c==abc[j]) times[j]++;
       }  
   for(int i=0;i<times.length;i++)
      System.out.println(abc[i]+" was used "+times[i]+" times");
    }

 }

i thought that if i count each letter first then i might be able to have some idea on how to count a specific word. please help me thanks

[r035198x]

Suppose that you split the sentence into an array of words ...

[noobinoo]

thanks,i'll try to do that

[r035198x]

The String.split method comes to mind here for the splitting into array part.

[noobinoo]

omg thanks alot it works ^^ thank you