Beginner Learning (i)

Like many people, there are a lot of problems when you get started, such as the configuration of the JDK environment variable, which makes the code always error. In fact, the environment will not be very simple, find Niang, haha. It must have been some Java-based syntax before the formal coding.

1. Key words

What are the key words, I also do not raise out, find Niang bar. It is important to note that const and Goto can no longer be used in Java, and appear in the Java keyword primarily to convert C, C + + code to Java code.

2. Variable name

Variable name rule

One, contains letters, numbers, and $, but the first character cannot be a number;

Second, the variable name of the difference between the case, no length provisions. The first letter of the word must be lowercase with the remainder of the word uppercase (lowercase can also be a specification only). Multiple words are linked together to name the hump.

Follow up to update

Beginner Learning (i)