从今天开始，将follow数据结构的一门经典课程，UC Berkeley的CS61B。 1 Hello World Let’s look at our first Java program. When run, the program below prints “Hello world!” to the screen. public class HelloWorld { public static void main(String[] args) { System.out.println("Hello world!"); } } For those of you coming from a language like Python, this probably seems needlessly verbose. However, it’s all for good reason, which we’ll come to understand over the next couple of weeks. Some key syntactic features to notice: The program consists of a class declaration, which is declared using the keywords public class. In Java, all code lives inside of classes. The code……

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学习CS61B的一个挑战便是需要学习使用Git and github。由于非伯克利注册的学生不能够得到instructional number,因此我们需要在自己的github上创建一个专有的repository，我将自己的命名为cs61b-sp18，有了这个repo，我们就可以把本地的课程代码/作业代码/项目代码推送到这个远程库中，然后上传到autograder进行评分。

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