study day05 标识符和关键字

关键字

 

 

标识符

 

 

 

public class Demo01 {
public static void main(String[] args) {
//可行标识符
String Ahello = "sha";
String hello = "sha";
String $hello = "sha";
String _hello = "sha";
//不可行标识符
String -hello = "sha";
String 1hello = "sha";
String #hello = "sha";
String class = "sha";
//标识符大小写敏感
String Man = "sha";
String man = "sha";
//可用中文，不建议
String 王者荣耀 = "最强王者";
}
}