(HBase)错误:未设置JAVA_HOME，无法找到Java

I have read some comments about setting JAVA_HOME. As I am a beginner in this,I did not edit anything without any knowledge of what I was doing. I did not want to mess things up more than this. So if you can guide me through this and tell me what is wrong with my coding, I would really appreciate it. I have read some comments about setting JAVA_HO