Compress consecutive character occurrence of a character in a String

Compress.java

public class Compress {
  
    public static String compressedString(String str){
        StringBuilder dest = new StringBuilder();
        
        for(int i=0;i<str.length();i++){
            char c = str.charAt(i);
            dest.append(c);
            int j = i;
            int count =1 ;
            if(i<str.length()-1)
                if(j<str.length()-2){
                while(c==str.charAt(j+1)){
                count++;
                j++;
                i++;
            }}
            if(count>1)
            dest.append(count);
        }
                
        return dest.toString();
    }
    
    
    
    public static void main(String[] args) {
        String word = "Hello";
        System.out.println(compressedString(word));
        //Output should be like hel2o        
    }
}