Java and Data Structure

Recently, i always though about how to be a professional IT person. I want to learn Java technology, but i found i didn't have the good character to be an developer. Essentially, i don't have enough basic IT knowledge. So i am always be thinking that how to be a professional developer. Today, i made a decision that i will have to star t from the Java basic knowledge. Making full use of the Java, i will do program amd implement the data structure and some excellent algorithem.