java (classes and instances)

Declaration of constant field

public class Matango {
	int hp;
	//int level = 10;    //field
	final int LEVEL = 10; //Constant field

A constant field that prevents the value from being rewritten Name with final touppercase(LEVEL)

do not omit this

public class Hero {
	String name;   //Name declaration
	int hp;        //HP Declaration
	public void sleep() {
		this.hp = 100;
		System.out.println( + "Sleeped and recovered");

It works even if this. is omitted If local variables and arguments have the same hp, they may take precedence. Add this. when using fields

Instance generation

public class Main {
	public static void main(String[] args) {
		//1. Generate a brave man
		Hero h = new Hero();

Class name (Hero) Variable name (h) = new Class name (Hero) ();

Assigning a value to a field

public class Main {
	public static void main(String[] args) {
		//1. Generate a brave man
		Hero h = new Hero();
		//2. Set the initial value in the field = "Brave";
		h.hp = 100;
		System.out.println("Brave" + + "Was born!");

Variable name. (H.) Field name (name) = Value ("Brave");

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