07_Make Array Consecutive 2

int solution(int[] statues) {
    int dif, flag=0;
        Arrays.sort(statues);
        for(int i=0;i<statues.length;i++){
            
            if(i==0){
                continue;
            }
            else{
                dif = statues[i]-statues[i-1];
                if(dif == 1){
                    continue;
                }
                else{
                    for(int j=statues[i-1];j<statues[i]-1;j++){
                        flag+=1;
                    }
                }
            }
        }  
    return flag;
}