public class Test {
//实例变量,从属于类Test
int age;
//类变量,从属于类Test
static int b = 2;
//常量
static final c=3
public static void main(String[] args) {
//局部变量
int a = 1;
System.out.println(a);
//变量类型 变量名字=new Test
Test test = new Test();
System.out.println(test.age);
System.out.println(b);
}
}