hourly activity file errors

I'm having some difficulty with errors in my HourlyForecastActivity file.

''' java package com.evermedresearch.stormy.ui;

import android.app.ListActivity; import android.content.Intent; import android.os.Bundle; import android.os.Parcelable; import android.support.v7.app.ActionBarActivity;

import com.evermedresearch.stormy.R; import com.evermedresearch.stormy.weather.Hour;

import java.util.Arrays;

public class HourlyForecastActivity extends ActionBarActivity {

private Hour[] mHours;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_hourly_forecast);
}

Intent intent = getIntent();
Parcelable[] parcelables = intent.getParcelableArrayExtra(MainActivity.HOURLY_FORECAST);
mHours = Arrays.copyOf(parcelables, parcelables.length, Hour[].class);

} '''

It's saying mHours is an unknown class, cannot resolve symbol 'copyOf', parcelables is an unknown class, cannot resolve symbol 'length' and after Hour[]. identifier expected unexpected token.

Any thoughts would be great