Week 7 362. Design Hit Counter

public class HitCounter {
    int[] times;
    int[] hits;

    /** Initialize your data structure here. */
    public HitCounter() {
        times = new int [300];
        hits = new int [300];
    }
    
    /** Record a hit.
        @param timestamp - The current timestamp (in seconds granularity). */
    public void hit( int timestamp ) {
        int index = timestamp % 300;
        if (times[index] != timestamp){
            times[index] = temstamp;
            hits[index] = 1;
        }else{
            hits[index]++;
        }
    }
    
    /** Return the number of hits in the past 5 minutes.
        @param timestamp - The current timestamp (in seconds granularity). */
    public int getHits(int timestamp) {
        int total = 0;
        for (int i = 0; i < 300; i++){
            if (timestamp - time[i] < 300){
                total += hits[1];
            }
        }
        return total;
    }
}

/**
 * Your HitCounter object will be instantiated and called as such:
 * HitCounter obj = new HitCounter();
 * obj.hit(timestamp);
 * int param_2 = obj.getHits(timestamp);
 */