尝试独立安装selenium，但收到此错误，知道吗？

# put the words you want to match into a list
word_list = ["eat","car","house","pick up","child"]

# get input text from the user 
user_prompt = input("Please enter some text: ")

# loop over each word in word_list and check if it is a substring of user_prompt
for word in word_list:
    if word in user_prompt:
        print("{} is in the user string".format(word))

我已经安装了Java，但是不知道它是否需要位于特定的文件位置。

$ ./node_modules/.bin/selenium-standalone install

not found: java
Usage: selenium-standalone action [options]

应该安装它，然后我才能启动它。