How to detect the next n words in a string after a word (that can occur multiple times) and separate them in an array

I have a string s in which I have to detect the word "car" and print the next 2 words. However, currently when I print words[i1], it gives me "is awesome. but it should give me "is",then "cool", then "is", then "awesome" in different lines(n=2 in the above case).

Can anybody tell me what is wrong with this code?

                String s="car is cool car is awesome.";
                int index = contents.indexOf(s);
                while(index >= 0) {
                   String[] words = new String[n];
                   for (int i3=0;i3<n;i3++){
                       words[i3]="";
                   }
                   int i1=0, i2=index;
                   while(true){
                       if(i1==n) break;
                       if(i2>=contents.length()) break;
                       while(true) {
                           if(i2>=contents.length()) break;
                           if((contents.charAt(i2)+"")==" ") break;
                           words[i1]+=(contents.charAt(i2)+"");
                           i2++;
                       }
                       System.out.println(words[i1]);
                       i1++;
                   }
                    index = contents.indexOf(s, index+1);
                }