Secondly, we should understand the curriculum. Nowadays, many schools use java to make big data, but in fact, big data mainly includes Hadoop, Spark, Scala, and java, but there are certainly not so many, so we must pay more attention to the modules of the course;
Third, look at the qualifications of teachers. Under normal circumstances, a teacher with 3-5 years' working experience is definitely not good, just a skilled worker who doesn't understand his own place. As long as he has more than 7-8 years' working experience and worked as a project manager or CTO, he has enough information and more project experience.
Finally, be sure to watch the class, and don't go to the kind where there is no teacher to make up the video. On the whole, I think there are several schools to consider, 1, Shangguan Education-their courses are based on big data, the price is reasonable, and there are many cases of big data projects; 2, Shang Tangxue, they are mainly java, supplemented by big data, and don't talk much about the content of big data; 3, forwards, they are mainly java+ big data, but the price is too expensive and the cycle is too long; 4, power nodes, they started with java, only know a little big data, not very proficient.