Null Pointer Exception on Object Array

[quark]

Or

for(int i = 0; i < flakes.length; i++){
        flakes[i] = new Snowflake(int(random(20, width - 20)), int(random(20, height - 20)), 20, 3);
    }
for(Snowflake sf:flakes){
        sf.drawSnowflake();
    }