Summary of the first week of August

　　The first week of August or watch the video to understand the array of Java and c, c ++ different place three kinds of different initialization methods, statements and other methods are also different, such as int [] a = new int [3], also learned final modification of usage, he would be a constant that I have not seen in other programming languages, as well as super multi example, can directly copy the array in java inside the system usage also understand the concept of packages, also learned stringbuilder and stringbuffer these. There are also different from c back interfaces of different abstract classes.