learn and dive deep into Java. Variable naming conventions lecture

Main.java

public class Main {
  // instance variable
  int myAge = 29;

  // static/class variables
  static int salary = 90000;

  //int age = 222;
  static int age = 444;
  public static void main(String[] args) {
    // local variable
    int age; // declared variable of type int, variable name is "age"
    age = 26; // variable assignment

    // two variables with the same name
    //int age;

    int myAge2 = 26;
    int mySecondAge = 50;
    int age1 = 80;

    int _age = 9; // allowed but not recommended
    int $age = 9; // allowed but not recommended
    System.out.println(age);
  }
}