What is the “only” in the IT industry?

I am currently studying at the Guangdong University of Technology, the 06 session of Information Management and Information System, in September this year, entered the junior. Programming, I have a strong interest in the IT industry will be tender enough to have a bright future, but their ability to feel confused, do not know their own ability to self-taught, I mastered PHP, Java, XML, MySQL, and Linux, various types of server installation, configuration and management of some of the basics, I do not know whether the general corporate requirements. And I want to know that the software company is the students interested exam powerful programming capabilities, extensive knowledge of interest, we hope to give an opinion!